BAR 2009 Technician Update Training Course

MinMin 056mV056mV MaxMax 912mV912mV AveAve 446mV446mV

BAR 2009 Technician Update Training Course

Smog Check Failure Diagnostics


Smog Check Failure Diagnostic Module

• Training Objectives–Relevance & Importance of Smog

Check Failure Diagnostics–Diagnostic Skills–Critical Thinking Skills


Relevance & Importance of Smog Check Failure Diagnostics


BAR Field Studies

• Quality Assurance• Gold Shield• Clean Car


Smog Check Program Evaluation

• Program Evaluation – The ability of a vehicle to pass a smog

inspection after certification– BAR Roadside

• Smog Check Failure Rate is 40+% 6 months after “successful” smog check repairs– Based on Roadside Data


BAR Technician Training Surveys

• Technicians– “What additional

training do you feel would have benefited you in your job performance? “

• #1 Response– Additional

Training in Step-by-Step Smog Check Failure Diagnostics


BAR Technician Training Surveys

• Clean Air Car Course Instructors–57.1% responded that the time

spent on emission-related diagnostic procedures should be significantly increased


Laws & Regulations• Health & Safety Code (H&S)

– 44016• California Code of Regulations (CC&R)

– 3340.41(d) – The specifications and procedures required by Section 44016 of the Health and Safety Code shall be the vehicle manufacturers recommended procedures for emission problem diagnosis and repair or the emission diagnosis and repair procedures found in industry-standard reference manuals and periodicals published by nationally recognized repair information providers. Smog check stations and smog check technicians shall, at a minimum, follow the applicable specifications and procedures when diagnosing defects or performing repairs for vehicles that fail a smog check test.


Fuel Costs

• Most Smog Check failure repairs will positively influence a vehicle’s fuel economy, performance and durability


Did You Know?• California’s current vehicle-dependent

lifestyle has led to a dramatic increase in health risks– California has more registered cars than any

other state– 95 percent of all Californians breathe in

dangerous levels of smog on a regular basis– Every year, more people die from air quality-

related health issues than car accidents


Did You Know?• California’s current vehicle-dependent

lifestyle has led to a dramatic increase in health risks– 50 percent of all California’s motor vehicle

pollution is produced by only 10 - 15 percent of the state’s total number of cars driven

– A poorly maintained or malfunctioning vehicle can release as much as 10 times the emissions of a well maintained vehicle


Summary

• BAR Field Studies + Smog Check Program Evaluations + Training Survey Responses + Laws & Regulations + Fuel Costs + Public Health =

• Opportunities to Improve Smog Check Repair Effectiveness


2009 Update Training Diagnostic Module

• Diagnostic Skills–HC–CO–NOx

–OBD II

• Critical Thinking Skills– Diagnostic Data– Cohesive/Effective

Repair Strategy


HC Diagnosis

HC Diagnosis(non-computer controlled vehicle)

Check ignition timing(base and advance as applicable.)

Verify engine integrity(relative compression, engine vacuum,

compression)

Ignition system analysis(firing lines, spark lines duration & slope)

Lean misfires(intake manifold leaks, defective vacuum

hoses or actuators)

Poor fuel vaporization(plugged intake manifold cross-over,combustion chamber quench areas)

Air injection reaction (AIR) system(switching, operating pressure)

Is the catalystoperating properly?

Timing light, magnetic timing, tachometer,base timing specifications and timing advance

specifications (if available)

Vacuum gauge / transducer diagnosis, relativecompression / cylinder balance test, dry

compression test

Secondary, primary ignition system oscilloscopeanalysis. Look at spark lines for evidence of leanmixtures / poor flame propogation (NOx failures).

Carburetor cleaner / propane, smoke machine,vacuum leak detector, lambda calculator,

secondary ignition

Spark line diagnosis, cylinder balance test, digitalpyrometer

AIR system operation description. Use 4/5 gasanalyzer and look for O2 drop with AIR supply hose

pinched off or disconnected

Manufacturer's test procedures, 4/5 gas analysis(high CO2, low O2), cranking CO2, snap O2,

temperature gain, intrusive

Tools and Techniques


HC Feedback Diagnosis

(OBD I)

HC Diagnosis(computer controlled vehicle)

(OBD I)

Refer to "High HC Non-feedback"diagnostic flowchart

DTC's?

Follow manufacturer's or publisheddiagnostic / repair procedures for

hard codes

Discern between hard and soft codes

Test O2S with DSO

O2S in goodseviceable condition?

Map O2S signal with DSO

Timing; mechanical, electrical lean air/fuelmisfires, vaporization, AIR, catalyst

Scan tool, jumper wire, screwdriver,DTC pulling instructionis

Yes

Yes

Pull codes, record codes in the orderthey are displayed, erase codes,operate vehicle, pull hard codes

Scan tool, multimeter, DSO, DTC diagnosticflowcharts, diagnostic & repair information

Propane enrichment tool, DSOminimum voltage = 0 - 175mV

maximum = 800 - 1000mVrate of change = < 100 mS (175mV - 800 mV)

No

Upon repair of O2S circuit or replacement ofsensor, re-test O2S

High frequency signal = misfireSignal biased below 450 mV = lean mixtureSignal biased above 450 mV = rich mixture

No



CO Diagnosis

CO Diagnosis(non-computer controlled vehicle)

Check air intake system forrestrictions

Check for unmetered fuel enteringthe engine

Check carburetor operation

Check air injection systemoperation

Check catalyst(s) operation

Plugged / dirty air filter, improper choke operation,plugged PCV system, improper TAC operation

Improper EVAP purge operation, saturated EVAPcannister, fuel contaminated engine oil (> 500 ppm HC

after 5 minutes measured at the oil filler neck engine off)

Float level, choke operation, main metering, power valve,idle circuit

Use system description / operation to verify properswitching. Check operating pressure by pinching off

supply hose and verifying O2 drop in tailpipe emissions

After upstream repairs are complete, use manufacturer'sprocedures to test efficiency. Combinations of cranking CO2,

snap O2, HC efficiency, temperature gain are useful whenmanufacturer's procedures aren't available.



CO Feedback Diagnosis

(OBD I)Yes

CO Diagnosis(computer controlled vehicle)

(OBD I)

Review data stream (if available) orconfirm related sensor/output

performance. Test O2S with DSO.

Check for vehicle computer operation (isthe fuel metering system capable of beingartificially driven rich or lean, is the timing

being controlled? Perform manufacturer'srecommended system performance check)

Pull codes, record codes in theorder they are displayed, erase

codes, operate vehicle, pull hardcodes (OBD I)

Scan tool, multimeter, DCO,DTC diagnostic flowcharts,

diagnostic & repair information

DMM, DSO, propaneenrichment tool, break-out box

4/5 gas analyzer, timing light,sensor simulator

Refer to "High CO Non-Feedback"diagnostic flowchart

Air intake restriction, unmeteredfuel, carburetor, air injection,

catalyst operation

DTC's?


Follow manufacturer's or publisheddiagnostic / repair procedures for hard

codes

No

Scan tool, jumper wire,screwdriver, DTC pulling

instructions



NOx Diagnosis

NOx Diagnosis


Check exhaust gas recirculation (EGR)system

(if equipped)

Check for lean air/fuel mixture

Check for excessive coolant and/orintake air temperature

Check for excessive combustionchamber pressure

Check for proper fuel octane rating

Check catalyst operation(vehicles equipped with a reduction catalyst only)

Timing light, magnetic timing,tachometer, base timingspecifications and timingadvance specifications (if

available)

Vacuum guage/pump,tachometer, scantool

Lambda calculator, gasanalyzer, biased O2S pattern,

fuel trim data, secondary ignitionpattern

Pyrometer, scantool,temperature probe,

thermometer

Compression guage,borescope, TSBs

Owner's manual, vehicle owner

Manufacturer's test procedures,4/5 gas analysis (high CO2, low

O2), cranking CO2, snap O2,temperature gain, intrusive



OBD IIOBD II Diagnostics

MIL illuminated?

Pull DTC's and record freezeframe data

Review pending DTC's,monitor status, mode 6 andmode 5 data, fuel trim and

misfire data

Perform a system performancecheck and/or a complete drive

cycle as per manufacturer'sinstructions

Check PCM for DTC's(pending or matured), reviewmode 6 and mode 5 data for

failed test results

Yes

NoFollow manufacturer's or

published diagnostic / repairprocedures for DTC's. Begin

with the DTC refered to infreeze frame data

Scan tool

Manufacturer's orpublished diagnostic& repair information

Scan tool

Scan tool, multimeter, DSO,DTC diagnostic flowcharts,

diagnostic & repairinformation

Scan tool, paper & pencil. Donot erase DTC's unless

instructed to do so by diagnostic/ repair procedures

MIL functional test(KOEO bulb check)



HC Diagnostics


HC Diagnosis

HC Diagnosis(non-computer controlled vehicle)



compression)

Ignition system analysis(firing lines, spark lines duration & slope)


hoses or actuators)






Vacuum gauge / transducer diagnosis, relativecompression / cylinder balance test, dry

compression test


Carburetor cleaner / propane, smoke machine,vacuum leak detector, lambda calculator,

secondary ignition

Spark line diagnosis, cylinder balance test, digitalpyrometer

AIR system operation description. Use 4/5 gasanalyzer and look for O2 drop with AIR supply hose

pinched off or disconnected





HC Diagnostics

• Base & Timing Advance – Where applicable

• Timing Light, Magnetic Timing Device, Tachometer, Timing Procedures & Specifications





HC Diagnostics

• Vacuum Gauge / Vacuum Waveform• Relative Compression Test

– Cylinder Balance– Cranking Tests

• Compression Tests


compression)

Vacuum gauge / transducer diagnosis,relative compression / cylinder balance

test, dry compression test


Vacuum Gauge Showing 18” @ Idle


HC Diagnostics


HC Diagnostics


HC Diagnostics

• Secondary/Primary Ignition Waveform Analysis– Firing Line Amplitude – Firing Line – Spark Line Junction– Spark Line Duration & Slope– Coil / Condenser Oscillations– Ignition Switching

Ignition system analysis(firing lines, spark lines

duration & slope)



HC Diagnostics

• Secondary/Primary Ignition Waveform Analysis– Firing Line Amplitude – Firing Line – Spark Line Junction– Spark Line Duration & Slope– Coil / Condenser Oscillations– Ignition Switching

Ignition system analysis(firing lines, spark lines

duration & slope)



HC Diagnostics

• Visual Inspection• Vacuum Leak Detection• Smoke Machine• Lambda Calculator• Secondary Ignition Analysis


hoses or actuators)

Carburetor cleaner / propane, smokemachine, vacuum leak detector, lambda

calculator, secondary ignition


Lean Misfire Lambda Calculator Video Clip

Click Calculate to Start Demo


HC Diagnostics


HC Diagnostics

• Liquid Fuel Does Not Burn, Only Vaporized Fuel Burns


Spark line diagnosis, cylinderbalance test, digital pyrometer


HC Diagnostics

• AIR Operation Description & Routing Diagram

• AIR Operating Pressure• 4/5 Gas Analyzer


AIR system operation description. Use 4/5 gasanalyzer and look for O2 drop with AIR supply

hose pinched off or disconnected


HC Diagnostics

• Catalyst Operation & Efficiency is Dependent Upon Upstream Operation Under All Driving Conditions





HC Feedback Diagnosis

(OBD I)

HC Diagnosis(computer controlled vehicle)

(OBD I)


DTC's?


hard codes


Test O2S with DSO

O2S in goodseviceable condition?

Map O2S signal with DSO

Timing; mechanical, electrical lean air/fuelmisfires, vaporization, AIR, catalyst


Yes

Yes


Scan tool, multimeter, DSO, DTC diagnosticflowcharts, diagnostic & repair information

Propane enrichment tool, DSOminimum voltage = 0 - 175mV


No

Upon repair of O2S circuit or replacement ofsensor, re-test O2S

High frequency signal = misfireSignal biased below 450 mV = lean mixtureSignal biased above 450 mV = rich mixture

No



HC DiagnosticsOBD I

• HC Feedback Diagnosis Builds On To HC Non-Feedback Diagnosis

• Includes DTCs & O2S Performance and Signature


Timing; mechanical, electrical lean air/fuel misfires, vaporization, AIR, catalyst


HC DiagnosticsOBD I

DTC's?


hard codes



Yes


Scan tool, multimeter, DSO, DTCdiagnostic flowcharts, diagnostic &

repair information


HC DiagnosticsOBD I

• Oxygen Sensor Test– Light Off O2S– Artificially Manipulate Full Rich (propane)– Artificially Manipulate Full Lean– Snap Throttle

Test O2S with DSOPropane enrichment tool, DSOminimum voltage = 0 - 175mV



HC DiagnosticsOBD I

• Passing Results– Minimum Voltage (Artificially Full Lean)

• 0V – 175mV

– Maximum Voltage (Artificially Full Rich)• 800mV – 1V

– Rise Time (Snap Throttle)• < / = 100mS (from 175mV – 800mV)




Normal O2 Pattern


Propane Enriched


Enrichment Discontinued Snap Throttle


RPM

O2S

STFT

IPW

TPS

MAF

Artificial Enrichment & Throttle SnapArtificial Enrichment & Throttle Snap


Time Measurement


1.67s


Max to Min Voltage



Rise Time

.175-.8v


Start cursor higher than .175v


Drop down to .175v


Start below .800V


Increase to 800mv


Being off just a little can affect your results


Error factor exists due to the 5ms “steps” of the cursors as they move

(+/- 4ms each)

final reading could vary by 8ms total


8 graticules V

OLTA

GE

10 graticules

TIME

Some DSO’s have grid divisions called Graticules

GraticuleGraticule

MinMin 056mV056mV MaxMax 912mV912mV AveAve 446mV446mV200m

v per graticule


500ms per graticule


200mv X 500ms

graticule


Each division= 50mV

Each division =100ms

This graticule is divided into 4 X 5 segments


= 50mV

set lower cursor at 175mV

Measuring O2 voltage and rise time using cursors


= 50mV

= 175mV

= 800 mV


= 175mV

= 800 mV

Fail!Set time cursors to measure rise timeSet time cursors to measure rise time


HC Diagnostics• HC Case Scenario• Instructor Lead Demonstration

– Engine Integrity Verification– Misfire Diagnosis

• Lab Exercises– Vehicle Information Datasheet


Case Scenario

1995 Plymouth Neon

HC Failure


’95 Neon HC Failure

ASM 2525Result HC CO CO2 NO O2 RPMFail 88 0.05 14.5 6 0.5 1988

StandardsHC CO CO2 NO O2

Fail 59 0.55 774GP 233 2.05 1,770AVG 13 0.05 136



• Failed for HC at 25/25• Technician Tested HO2S

– minimum voltage 104mV– maximum voltage 910mV– rise time 68mS

• Technician Tested Catalyst– CO2 Cranking Test

• HC 9327 ppm

• CO2 10.5 %



• Based on this diagnostic information, the technician recommended replacing the catalyst to resolve the HC failure.

• What diagnostic steps could have been

performed to more thoroughly address the HC failure?


Vehicle Information Data Sheet Vehicle Make: Model: Year: VIN #:

License #: # of Cylinders: Engine Size: Mileage: Date: RO #:

Pre-repair Baseline Emissions Results

Cut-points Measured Cut-points Measured Cut-points Measured 50/15 HC HC CO CO NOx NOx

Cut-points Measured Cut-points Measured Cut-points Measured

25/25 HC HC CO CO NOx NOx

Lambda Calculator:__________________________________________________________________________

Visual/Functional Inspection Use: P = Pass M = Modified S = Missing D = Disconnected F = Defective N = Non-Applicable PCV___ TAC___ EVAP___ AIS___ EGR___ SPK___ CAT___ COMP___ SENSORS___

Functional Test Idle Speed:_____ RPM Ignition Timing:_____ Spec:_____ Pass � Fail�

EGR: � Pass � Fail Cause (if fail): � Defective EGR � No Vacuum � Clogged Passages

How many inches of vacuum required to open EGR? _____ Hg.

OBD II: Communications: � Pass � Fail Monitor Status: � Pass � Fail MIL Command: � Pass � Fail

Visible Fuel Leaks: Pass Fail Fuel CAP: Pass Fail Low pressure fuel evaporative test: Pass Fail� � � � � �

Computer Operation

Computer Code Stored? � Yes �No If yes, are codes: � Hard � Soft Record Codes:___________

Are codes emission related? � Yes � No Define Codes:__________ __________ __________

Record results of diagnosis:_____________________________________________________________

Oxygen Sensor: � Good � Defective Low Voltage:____mV High Voltage:____mV Rise Time:____ms

CO Standards: � Pass � Fail

Is system in fuel control? � Yes � No If no, is O2 biased? �Rich � Lean Will the computer respond to

artificial O2 input? � Yes � No If no, why?______________________________________________

Air Injection Is AIS functioning correctly? � Yes � No If no, why? ____________________________

____________________________________________________________________________________


Visual Inspection of the Engine Performance Systems Notes:________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

HC Diagnosis Misfires: Engine: � Yes � No Ignition: � Yes � No Air/Fuel: � Yes � No Notes:________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________

CO Diagnosis

Average O2S Voltage:_________________ Fuel Trim Data:___________________________

Air filter in good serviceable condition?: � Yes � No

Fuel Pressure: Specifications:___________________ Measured:_________________________________

Saturated EVAP control canister?: � Yes � No Engine oil contaminated with fuel?: � Yes � No

Carburetor Operation:

idle air/fuel adjustment_______ choke adjustment_______ float level_______ power valve operation_______

NOx Diagnosis

Ignition Timing Advance: Specifications: Centrifugal:__________ Vacuum:__________

Measured: Centrifugal:__________ Vacuum:__________

Coolant Temperature:__________ Air Intake Temperature: TAC_________ EFE__________

Is engine compression excessive?: � Yes � No Is fuel octane correct?: � Yes � No

Catalytic Converter Efficiency Diagnosis

Is catalytic converter in good serviceable condition?: � Yes � No

Describe testing method(s) used:_____________________________________________________________

Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


Case Scenario

1991 Honda CRX

HC Failure


’91 CRX HC Failure

• 1991 Honda CRX• 4 cylinder, 1.6L engine• Failed Smog Check for high HC at 50/15

– Functional tests – PASS– Visual tests – PASS

• PCV, EVAP, CAT, SPK, FI, HO2S





Fail 134 0.82 847GP 308 2.32 2,070AVG 31 0.10 237



• Diagnostics Performed:• Technician Tested Engine Integrity

– Cylinder balance - #4 showed low contribution– Leakage test - #4 excessive leakage exhaust

• DTC’s - none• TSB’s – State I/M failure due to improper

warm-up procedures – not applicable in this case



• Continued

• Technician Tested HO2S– minimum voltage 200mV– maximum voltage 810mV– rise time 371mS



• Based on this diagnostic information, the technician recommended adjusting the valves and replacing the HO2S.

• Repairs were authorized and performed.



• The after-repairs inspection showed the following emissions readings:



• The after-repairs inspection showed the following emissions readings:ASM 5015

Result HC CO CO2 NO O2 RPMPASS 95 0.15 15.00 844 0.10 1857

Standards

HC CO CO2 NO O2Fail 134 0.82 847GP 308 2.32 2,070AVG 31 0.10 237



• What diagnostic steps could have been performed to more thoroughly address the HC failure?





Cut-points Measured Cut-points Measured Cut-points Measured 50/15 HC HC CO CO NOx NOx





Functional Test Idle Speed:_____ RPM Ignition Timing:_____ Spec:_____ � Pass � Fail




Visible Fuel Leaks: � Pass � Fail Fuel CAP: � Pass � Fail Low pressure fuel evaporative test: � Pass � Fail

Computer Operation









____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


CO Diagnostics


CO Diagnosis

CO Diagnosis(non-computer controlled vehicle)

Check air intake system forrestrictions

Check for unmetered fuel enteringthe engine

Check carburetor operation

Check air injection systemoperation

Check catalyst(s) operation

Plugged / dirty air filter, improper choke operation,plugged PCV system, improper TAC operation

Improper EVAP purge operation, saturated EVAPcannister, fuel contaminated engine oil (> 500 ppm HC

after 5 minutes measured at the oil filler neck engine off)

Float level, choke operation, main metering, power valve,idle circuit



After upstream repairs are complete, use manufacturer'sprocedures to test efficiency. Combinations of cranking CO2,

snap O2, HC efficiency, temperature gain are useful whenmanufacturer's procedures aren't available.



CO DiagnosticsCheck air intake

system for restrictionsPlugged / dirty air filter, improper choke

operation, plugged PCV system, improper TACoperation


CO Diagnostics

• EVAP– Saturated

Canister– Improper Purge

Valve Operation

• Crankcase– Improper PCV

Valve Operation– Engine Oil

Contaminated With Fuel

Check for unmetered fuelentering the engine

Improper EVAP purge operation, saturated EVAP cannister,fuel contaminated engine oil (> 500 ppm HC after 5 minutes

measured at the oil filler neck engine off)


CO Diagnostics

• Float Level• Choke Operation• Main Metering• Power Valve• Idle Circuit

Check carburetoroperation

Float level, choke operation, mainmetering, power valve, idle circuit


CO Diagnostics

• Same As HC Diagnosis

Check air injectionsystem operation

Check catalyst(s)operation



After upstream repairs are complete, use manufacturer'sprocedures to test efficiency. Combinations of cranking

CO2, snap O2, HC efficiency, temperature gain are usefulwhen manufacturer's procedures aren't available.


CO Feedback Diagnosis

(OBD I)Yes

CO Diagnosis(computer controlled vehicle)

(OBD I)

Review data stream (if available) orconfirm related sensor/output

performance. Test O2S with DSO.



Pull codes, record codes in theorder they are displayed, erase

codes, operate vehicle, pull hardcodes (OBD I)

Scan tool, multimeter, DCO,DTC diagnostic flowcharts,


DMM, DSO, propaneenrichment tool, break-out box

4/5 gas analyzer, timing light,sensor simulator

Refer to "High CO Non-Feedback"diagnostic flowchart

Air intake restriction, unmeteredfuel, carburetor, air injection,

catalyst operation

DTC's?


Follow manufacturer's or publisheddiagnostic / repair procedures for hard

codes

No


instructions



CO Diagnostics

• CO Feedback Diagnosis Builds On To CO Non-Feedback Diagnosis

• Includes DTCs & O2S Performance and Signature

Refer to "High CO Non-Feedback" diagnostic flowchart

Air intake restriction,unmetered fuel,

carburetor, air injection,catalyst operation


CO Diagnostics

DTC's?

Follow manufacturer's orpublished diagnostic / repairprocedures for hard codes

Discern between hardand soft codes


instructions

Yes





CO Diagnostics

• Oxygen Sensor Test– Light Off O2S– Artificially Manipulate Full Rich (propane)– Artificially Manipulate Full Lean– Snap Throttle




CO Diagnostics

• Passing Results– Minimum Voltage (Artificially Full Lean)

• 0V – 175mV

– Maximum Voltage (Artificially Full Rich)• 800mV – 1V

– Rise Time (Snap Throttle)• < / = 100mS (from 175mV – 800mV)




CO Diagnostics

• Feedback Systems Default to Rich When They Become Non-responsive (limp home mode)

• Check for the PCM’s Ability to Drive the System Rich or Lean Based on an Opposing Signal

• Check for the PCM’s Ability to Control Ignition Timing



4/5 gas analyzer,timing light,

sensor simulator











Functional Test Idle Speed:_____ RPM Ignition Timing:_____ Spec:_____ Pass � Fail �





Computer Operation






Is system in fuel control? � Yes � No If no, is O2 biased? �Rich � Lean Will the computer respond to artificial

O2 input? � Yes � No If no, why?______________________________________________


____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


CO Diagnostics• CO Case Scenario• Instructor Lead Demonstration

– Intake Air Restrictions– Un-metered Fuel– Fuel Metering– O2S Mapping/Average



1991 Acura Integra CO Failure

Case Scenario


’91 Integra CO Failure

• Failed Smog Check Inspection for:– Excessive CO 50/15

• Passed Visual and Functional

• Tailpipe Readings...


ASM 5015Result HC CO CO2 NO O2 RPMFail 121 0.99 14.6 771 0 1988


Fail 121 0.76 807GP 296 2.26 2,014AVG 31 0.10 237




• Diagnostic tests performed...– HO2S waveform monitored and found to

vary from 100mV to 900mV– Closed loop verified– Catalyst outlet temperature less than

inlet temperature – Needs catalyst



• Repairs authorized and performed– Catalyst replaced



• The vehicle passed and after-repairs Smog Check inspection– The final readings are as follows:


ASM 5015Result HC CO CO2 NO O2 RPMPass 87 0.3 15.2 515 0 1973

Standards





• The vehicle passed and after-repairs Smog Check inspection

• What diagnostic steps could have been performed to more thoroughly address the failure?
















Computer Operation









____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


Case Scenario

1989 Dodge B-150

CO/HC Failure


’89 B-150 CO/HC Failure

• 1989 B-150, 6 cylinder, 3.9 L engine• Tailpipe

– Failed Smog Check for high CO/HC at both 50/15 and 25/25 modes

• Functional – Failed fuel cap

• Visual tests– Failed missing AIR pump belt (pump frozen)



ASM 5015Result HC CO CO2 NO O2 RPMGP 633 10.78 7.1 21 0.0 1395

Standards

HC CO CO2 NO O2Fail 124 0.75 1,020GP 311 2.05 1,807AVG 34 0.11 260




Standards




• Diagnostics Performed:– EGR – excessive flow off idle. Bad EGR transducer.

Affecting engine vacuum.– HO2S – fixed at 100mV both at forced rich and

lean. PCM responds to artificial signal– MAP and ECT sensor circuits OK– Needs AIR pump and belt– Needs fuel cap



• Based on this diagnostic information, the technician recommended:– Replacing fuel cap; AIR pump and belt; EGR

vacuum transducer; and HO2S

• Repairs were authorized and performed.



• The after-repairs inspection showed the following emissions readings:





Standards






Standards




What diagnostic steps could have been performed to more thoroughly address the CO/HC failure?
















Computer Operation









____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


Hand outHomework Assignment

End of Night One


NOx Diagnostics


NOx Diagnosis

NOx Diagnosis


Check exhaust gas recirculation (EGR)system

(if equipped)

Check for lean air/fuel mixture



Check for proper fuel octane rating


Timing light, magnetic timing,tachometer, base timingspecifications and timingadvance specifications (if

available)

Vacuum guage/pump,tachometer, scantool

Lambda calculator, gasanalyzer, biased O2S pattern,

fuel trim data, secondary ignitionpattern

Pyrometer, scantool,temperature probe,

thermometer

Compression guage,borescope, TSBs

Owner's manual, vehicle owner

Manufacturer's test procedures,4/5 gas analysis (high CO2, low

O2), cranking CO2, snap O2,temperature gain, intrusive



NOx FAILURES• Timing • EGR• A/F Ratio• Temperature• Pressure• Fuel• Catalyst


NOx Diagnostics

• Base & Timing Advance – Where applicable

• Timing Light, Magnetic Timing Device, Tachometer, Timing Procedures & Specifications


Timing light, magnetic timing,tachometer, base timing

specifications and timing advancespecifications (if available)


IGNITION TIMING• Pressure = Heat• Two High Pressure Events

–Compression–Combustion

• Separate The Two Events With Time


Beginning of compression stroke

Intake valve closes

Base Ignition Timing 10°

btdc

TDC Compression

Max pressure - temperature

Max pressure – combustion (16° - 21° atdc)

Over advanced

base timing (15° btdc)

Bottom Dead Center - Power


TIMING FAILURES

• Incorrect Base Timing• Incorrect Advance Curves

–Mechanical / Vacuum –Modules

• Timing Controls–Knock Sensors


NOx Diagnostics

• Vacuum Control & Supply• Intake & Exhaust Passages• Valve Performance

Check exhaust gas recirculation(EGR) system (if equipped)

Vacuum gauge/pump,tachometer, scantool


EGR SYSTEM OPERATION

• EGR Reduces Combustion Chamber Temps

• Reducing Amount of Air Fuel Charge

• Valve Timing?


EGR DEFECTS• Restricted or

Blocked Passageways

• Vacuum Supply• PCM Control

Malfunction

• Mechanical Malfunction

• Back Pressure Transducer Malfunction

• Insufficient Exhaust Back Pressure


NOx Diagnostics

• Lambda Calculator• Gas Analyzer• Biased O2S Pattern• Fuel Trim Data • Secondary Ignition Waveform Analysis

Check for lean air/fuel mixtureLambda calculator, gas

analyzer, biased O2S pattern,fuel trim data, secondary

ignition pattern


AIR FUEL RATIO

Stoichiometric Chart


STOICHIOMETRIC CHART

14.7:1

O2

CO

HC

NOxCO2

10:1 20:1RICH LEAN


Case Study

• September• 1993 Mazda Protege• 1.8L, Manual Trans, No EGR• Failed Smog Check for Timing

(FA99), HC & GP NOx


Initial Failing Inspection (GP)


Standards



NOx Case ScenarioLambda Calculator

Movie Clip

Click Calculate to Start Demo


Case Study

• November• 1993 Mazda Protege• 1.8L, Manual Trans, No EGR• Failed its Pre-repair Baseline

Inspection at a CAP station for for Timing (FB48), HC & NOx

(not in handouts)


Pre-repair Baseline (GS)

ASM 5015Result HC CO CO2 NO O2 RPMFail 186 0.43 16 1095 1 1683

Standards




Movie Clip


Case Study

• December• 1993 Mazda Protege• 1.8L, Manual Trans, No EGR• Passed & Certified


Post Repair Certification

ASM 5015Result HC CO CO2 NO O2 RPMPass 74 0.21 15.5 308 0.08 1590

Standards




Movie Clip


CAUSES OF LEAN MIXTURES

• Restricted Fuel Flow

• Fuel Injector Spray Pattern

• Plugged Injector• O2 Sensor Defect• Low Fuel Pressures

• MAF Sensor Malfunction

• MAP Sensor Malfunction

• TPS Sensor Malfunction

• PCM Malfunction


NOx Diagnostics

• Cooling System Operation

• Intake Air Operation

• Infra-red Digital Pyrometer

• Temperature Probe• Thermometer• Scan-tool PIDs


Pyrometer, scantool,temperature probe, thermometer


COOLING SYSTEM

• NOx Caused By Heat• Engine Temperature is

Regulated by Cooling System


COOLING SYSTEM DEFECTS

• Thermostat not Functioning Properly• Coolant Flow Through Radiator

Restricted• Low Coolant Level


EARLY FUEL EVAPORATION

• Liquid Fuel Does Not Burn• Assists Vaporization During Cold Engine

Operation• If EFE Not Disabled After Engine Is Warm

– Superheats Manifold and Air Fuel Charge• Check

– TVS, Temp Sensors, Linkage


NOx Diagnostics

• Excessive Pressure Due to Carbon Build-up• Unmanaged Ignition Source (timing)• Compression gauge, borescope, TSB’s


Compression gauge,borescope, TSBs


NOx Diagnostics

• Octane Rates Speed of Burn• High Octane Fuels Burn Slower• Low Octane Fuels Burn Faster• Consult Owner’s Manual

Check for proper fueloctane rating

Owner's manual,vehicle owner


NOx Diagnostics

• Exhaust Leaks Upstream From Catalyst• Sufficient CO (not excessively lean)• Physical Damage• Efficiency Tests• Applies Only To Vehicles Equipped With A

Reduction Catalyst!


Manufacturer's test procedures, 4/5 gas analysis (high CO2, low O2),

cranking CO2, snap O2,temperature gain, intrusive


NOx Diagnostics• NOx Case Scenario

• Instructor Lead Demonstration– Ignition Timing Advance– Lambda Calculator



1984 Volvo 240 DL

NOx Failure Case Scenario


’84 240 DL NOx Failure

• 2.3L 4 cylinder engine• PCV, TAC, EVAP, CAT, FI, & HO2S

• Failed 50/15 and 25/25 for NOx

• Passed functional and visual inspections





Fail 135 0.83 1,136GP 311 2.33 2,153AVG 41 0.13 399



ASM 25/25Result HC CO CO2 NO O2 RPMFail 65 0.02 14.4 2732 0.7 1754


Fail 110 0.63 966GP 261 2.13 1,953AVG 29 0.11 332



• Diagnostic Tests Performed...– HO2S

• Signal fixed at 540 mV


’92 Accord NOx Failure

• Repairs Authorized and Performed...– Replace HO2S



• The vehicle passed and after-repairs Smog Check inspection– The final readings are as follows:




Standards




ASM 25/25Result HC CO CO2 NO O2 RPMPass 57 0.04 14.8 662 0.1 1762

Standards















Functional Test Idle Speed:_____ RPM Ignition Timing:_____ Spec:_____ � Pass Fail �





Computer Operation






Is system in fuel control? Yes No If no, is O2 biased? Rich Lean Will the computer resp� � � � ond to



____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


1992 Honda Accord

NOx Failure Case Scenario


’92 Accord NOx Failure• 2.2L 4 cylinder engine• PCV, EVAP, EGR, CAT, SPK, FI, & HO2S

• Failed 50/15 and 25/25 for NOx

• Passed functional and visual inspections





Fail 116 0.74 791GP 291 2.24 1,992AVG 31 0.10 237



ASM 25/25Result HC CO CO2 NO O2 RPMFail 98 0.22 14.4 1186 0.2 1907


Fail 91 0.62 730GP 241 2.12 1,792AVG 20 0.09 199


’92 Accord NOx Failure• Diagnostic Tests Performed...

– Catalyst – failed cranking CO2 test– EGR – vacuum signal, passages, valve

operation – Good– Ignition timing – at specifications– Lambda – within specifications 50/15 and

25/25


’92 Accord NOx Failure• Repairs Authorized and Performed...

– Replace catalytic converter



• The vehicle passed an after-repairs Smog Check inspection– The final readings are as follows:




Standards




ASM 25/25Result HC CO CO2 NO O2 RPMPass 10 0.04 15.2 613 0 2531

Standards




















Computer Operation









____________________________________________________________________________________




CO Diagnosis







NOx Diagnosis








Diagnostic Summary:

__________________________________________________________________________________________

__________________________________________________________________________________________

__________________________________________________________________________________________


OBD II Diagnostics


OBD IIOBD II Diagnostics

MIL illuminated?



misfire data




failed test results

Yes

NoFollow manufacturer's or

published diagnostic / repairprocedures for DTC's. Begin


Scan tool

Manufacturer's orpublished diagnostic& repair information

Scan tool


diagnostic & repairinformation






OBD II DiagnosticsMIL illuminated?


Yes

Follow manufacturer's orpublished diagnostic / repairprocedures for DTC's. Begin








OBD II Diagnostics

• No MIL – No DTC Diagnosis...– Check Pending DTC’s; Mode 6 and Mode 5 Data;

Fuel Trim; and Misfire Data


misfire data

Scan tool


OBD II Diagnostics

• Manufacturer’s System Performance Check• Comprehensive Drive Cycle

– Re-check DTC’s, Mode 6/5 Data




failed test results

Scan tool

Manufacturer's orpublished diagnostic &

repair information


Critical Thinking SkillsAnalysis of Diagnostic Data

• Compare & Contrast

• What Works? What Doesn’t?

• What Doesn’t Fit?

• What’s Missing?• What Does the

Data Say?• What Does It All

Mean?


We will be using these Critical Thinking Skills

along with the datasheets on the 3 Case Scenarios

during the lab session


The End

SMOG CHECKSMOG CHECK

TECHNICIAN’S GUIDE TECHNICIAN’S GUIDE

TO USING THE TO USING THE

INTERNETINTERNET

ByByWayne BrumettWayne Brumett

USING THE INTERNETUSING THE INTERNET

In recent years, legislation was passed In recent years, legislation was passed requiring all vehicle manufacturers (mfgs.) to requiring all vehicle manufacturers (mfgs.) to provide aftermarket repair technicians and provide aftermarket repair technicians and shops with all the information needed to shops with all the information needed to diagnose and repair their vehicles.diagnose and repair their vehicles.

Mfgs. were required to make this information Mfgs. were required to make this information available, via the internet, to aftermarket available, via the internet, to aftermarket technicians at a nominal fee.technicians at a nominal fee.

Unfortunately, these mfg. websites are being Unfortunately, these mfg. websites are being under used by many technicians and shops!under used by many technicians and shops!

To successfully diagnose and repair today’s To successfully diagnose and repair today’s high tech vehicles, high tech vehicles,

YOU NEED TO USE THE INTERNET!!YOU NEED TO USE THE INTERNET!!

The following slides go over some internet The following slides go over some internet basics as they pertain to smog inspections, basics as they pertain to smog inspections, vehicle diagnosis, and repairs. vehicle diagnosis, and repairs. For some, this lesson will seem very basic and For some, this lesson will seem very basic and we ask for your indulgencewe ask for your indulgence. . For others, it will open up new avenues for For others, it will open up new avenues for inspection, diagnostic, and repair information.inspection, diagnostic, and repair information.

USING THE INTERNETUSING THE INTERNET

Q: OK, so how do you get on the internet?Q: OK, so how do you get on the internet?A: To access the internet, you need:A: To access the internet, you need:• A computer linked to the internet through a A computer linked to the internet through a

internet service provider.internet service provider.• Your Your ppersonal ersonal ccomputer (PC) needs a omputer (PC) needs a

program called an program called an internet browserinternet browser. Among . Among the common browser programs are: the common browser programs are: “Internet Explorer”, “Safari” (Apple PCs), “Internet Explorer”, “Safari” (Apple PCs), “Mozilla”, “Opera”, etc. Your PC probably “Mozilla”, “Opera”, etc. Your PC probably has one of these programs already has one of these programs already installed on it’s hard drive.installed on it’s hard drive.

USING THE INTERNET – Getting on the InternetUSING THE INTERNET – Getting on the Internet

Q: The student course syllabus says that I Q: The student course syllabus says that I mustmust do an internet homework assignment do an internet homework assignment to pass the courseto pass the course;; if I don’t own a if I don’t own a PC how can I complete this assignment?PC how can I complete this assignment?

A: The following options are available:A: The following options are available:• Most public libraries have PCs that you may Most public libraries have PCs that you may

use for use for free!free! you just need to get a library you just need to get a library card. They also have staff that can assist card. They also have staff that can assist you.you.

• Find an “internet cafe” and pay a small fee Find an “internet cafe” and pay a small fee to use their PCs.to use their PCs.

• Ask your employer or a friend if they would Ask your employer or a friend if they would allow you to use their PC.allow you to use their PC.



SO SHOW ME HOW SO SHOW ME HOW TO GET TO GET ON THE ON THE

INTERNET!INTERNET!

You have seen it a million times on TV. The You have seen it a million times on TV. The announcer says “For more information go to our announcer says “For more information go to our website”; then you see this funny sentence at the website”; then you see this funny sentence at the bottom of the screen that starts off with a bottom of the screen that starts off with a “www.”“www.” and ends with a and ends with a “.com”“.com” and a strange name in and a strange name in between – between – what does that mean?what does that mean?When a company wants to be on the internet they When a company wants to be on the internet they are given a specific address called their website are given a specific address called their website address (home page). This address usually starts address (home page). This address usually starts with a with a www.www. (meaning (meaning wworld orld wwide ide wweb), a eb), a namename, , then then “.com”“.com” (for “ (for “comcommercial”). If the group is not mercial”). If the group is not a commercial enterprise (like a charity), it could a commercial enterprise (like a charity), it could end in end in “.org”“.org” (for “ (for “orgorganization”), anization”), “.edu”“.edu” (for (for edueducation), or cation), or “.gov”“.gov” (for “ (for “govgovernment”).ernment”).

USING THE INTERNET – Website AddressesUSING THE INTERNET – Website Addresses

USING THE INTERNET – Website AddressesUSING THE INTERNET – Website Addresses

To access a specific website, you need to enter To access a specific website, you need to enter the correct address in the browser’s the correct address in the browser’s address address box.box.When you enter this address, you must enter the When you enter this address, you must enter the address characters address characters exactly as you see itexactly as you see it – no – no spaces, and type all the characters (e.g. spaces, and type all the characters (e.g. @@, , --, , //,, _ _ etc.)etc.)Lets say we wanted to go to a popular search Lets say we wanted to go to a popular search engine website like “Google.” In the address box engine website like “Google.” In the address box you would type: you would type: www.google.comwww.google.com and press the and press the “enter” key on the keyboard.“enter” key on the keyboard.

USING THE INTERNET – BAR’s WebsiteUSING THE INTERNET – BAR’s Website

BAR’s website has a lot of useful information BAR’s website has a lot of useful information for Smog Check technicians and stations. for Smog Check technicians and stations. The site has been recently been updated, The site has been recently been updated, and some new features were added. This site and some new features were added. This site can provide you with information that can can provide you with information that can assist you in performing an inspection. Some assist you in performing an inspection. Some of this site’s information is not available on of this site’s information is not available on any other website.any other website.So let’s take a look at some of the So let’s take a look at some of the information that is available:information that is available:

Accessing Manufacturer Websites - TSBs

Accepted engine performance/emission Accepted engine performance/emission failure diagnostic procedures require the failure diagnostic procedures require the technician to check (early on in the technician to check (early on in the process) for process) for TTechnical echnical SService ervice BBulletins ulletins ((TSBTSBs)- usually after checking for s)- usually after checking for Diagnostic Trouble Codes (DTCs). Often, Diagnostic Trouble Codes (DTCs). Often, the most up-to-date source for these the most up-to-date source for these TSBs is the manufacturer’s website.TSBs is the manufacturer’s website.Today, these websites can be accessed Today, these websites can be accessed by the technician via the internet, for a by the technician via the internet, for a nominal fee (and in some cases for free!)nominal fee (and in some cases for free!)

Q: So how can a TSB help me?Q: So how can a TSB help me?Imagine the following situation:Imagine the following situation: A technician has a 2004 1.6L Hyundai A technician has a 2004 1.6L Hyundai AccentAccent that has the followingthat has the following DTC: DTC: P0130P0130 (oxygen sensor malfunction). Without (oxygen sensor malfunction). Without Checking for TSBs, the tech incorrectly Checking for TSBs, the tech incorrectly replaces the Oreplaces the O22 sensor with a new one – sensor with a new one –

same code reappears!same code reappears!WHAT TO DO NOW?WHAT TO DO NOW?


Accessing Manufacturer Websites - TSBsHad the technician checked the Had the technician checked the manufacturer’s website, he/she would have manufacturer’s website, he/she would have found the following TSB related to this code:found the following TSB related to this code:As you can see, this was not an OAs you can see, this was not an O2 2 sensor sensor failure issue, but an ECM reprogramming failure issue, but an ECM reprogramming issue. Now the shop must suffer the loss of issue. Now the shop must suffer the loss of time and money (Otime and money (O22 sensor was not sensor was not returnable) that resulted from an incorrect returnable) that resulted from an incorrect diagnosis and not following a sound diagnosis and not following a sound diagnostic procedure.diagnostic procedure.

Technical Service BulletinThis bulletin supersedes TSB# 05-36-003-2 to correct DTC code in the title from P0530 to P0503.

Subject: 2000-2004 1.5L & 1.6L ACCENT P0130 (OXYGEN SENSOR) AND P0503 (SPEED SENSOR)

Group: ENGINE ELECTRICALNumber: 06-36-002Date: MAY, 2006Model: 2000-2004 ACCENTDESCRIPTION: Some 2000-2004 Accents with 1.5L SOHC and 1.6L DOHC engines may experience the following symptoms::•DTC P0130 (Oxygen Sensor Malfunction)DTC P0130 (Oxygen Sensor Malfunction)• DTC P0503 (Speed Sensor Malfunction)• Reverse to Drive lurch while rolling backwards (On Automatic Transaxle equipped vehicles only)This bulletin describes the procedure for updating the Engine Control Module (ECM) software to This bulletin describes the procedure for updating the Engine Control Module (ECM) software to improve the above condition by using the Hi-Scan Pro.improve the above condition by using the Hi-Scan Pro.VEHICLES AFFECTED:Model: 2000-2004 ACCENT vehicles with 1.5L SOHC and 1.6L DOHC engines.


OK, you have convinced me that TSBs have value, but I OK, you have convinced me that TSBs have value, but I have never been to a manufacturer’s (mfg.) website have never been to a manufacturer’s (mfg.) website before, where is it located and how do I access this before, where is it located and how do I access this information?information?It is not as hard as you think, let’s take this process It is not as hard as you think, let’s take this process step-by-step. The first step is to find the specific step-by-step. The first step is to find the specific manufacturer’s webpage address for the vehicle you manufacturer’s webpage address for the vehicle you are working on. are working on. An organization called “The An organization called “The NNational ational AAutomotive utomotive SService ervice TTask ask FForce” has provided a list of mfg. orce” has provided a list of mfg. webpage addresses: webpage addresses: www.nastf.org.www.nastf.org.

So let’s go there now!So let’s go there now!

Accessing Manufacturer Websites - Getting an Email Address

But I don’t have an email address, But I don’t have an email address, how do I get one?how do I get one?You can set up a You can set up a ““freefree”” email account email account at various websites, some of which are: at various websites, some of which are: • www.hotmail.comwww.hotmail.com• www.gmail.comwww.gmail.com• www.yahoo.comwww.yahoo.com

Accessing Manufacturer WebsitesAccessing Manufacturer Websites

Now that you know how to sign Now that you know how to sign up to access a manufacturer’s up to access a manufacturer’s website, let’s explore some the website, let’s explore some the information you might find on a information you might find on a typical website:typical website:

Other Helpful WebsitesOther Helpful Websites

There are many other websites that can assist There are many other websites that can assist a Smog Check technician. One popular website a Smog Check technician. One popular website is the “is the “IInternational nternational AAutomotive utomotive TTechnicians echnicians NNetwork” (www.etwork” (www.I-ATNI-ATN.com). This site’s .com). This site’s ‘standard’‘standard’ membership level is membership level is “free”“free”. Let’s . Let’s take a look at some of the features of this site take a look at some of the features of this site that might be of value:that might be of value:

Note: The Dept. of Consumer Affairs/Bureau of Automotive Repair (BAR) does not endorse any one particular website. The information noted in this presentation is provided as a source of information for Smog Check technicians, to assist them in diagnosing and repairing emission failures. BAR does not take any responsibility for the accuracy of a website’s content, nor do the website participants views necessarily reflect those views held by BAR.

If you are interested in adding to your If you are interested in adding to your knowledge of engine performance knowledge of engine performance systems, you might find the following systems, you might find the following websites very useful. websites very useful.

Note:Note: The Dept. of Consumer Affairs/Bureau of The Dept. of Consumer Affairs/Bureau of Automotive Repair (BAR) does not endorse any one Automotive Repair (BAR) does not endorse any one particular website. The information noted in this particular website. The information noted in this presentation is provided as a source of information for presentation is provided as a source of information for Smog Check technicians, to assist them in diagnosing Smog Check technicians, to assist them in diagnosing and repairing emission failures. BAR does not take any and repairing emission failures. BAR does not take any responsibility for the accuracy of a website’s content, nor responsibility for the accuracy of a website’s content, nor do the website participants views necessarily reflect do the website participants views necessarily reflect those views held by BARthose views held by BAR..

Other Helpful WebsitesOther Helpful Websiteshttp://www.import-car.com/http://motorage.search-autoparts.com/http://www.motor.com/http://service.gm.com/index_en-US.htmlhttp://www.motorcraft.com/http://www.autoshop101.com/http://www.aeswave.com/Articles/index.htmhttp://www.underhoodservice.com/http://www.wellsmfgcorp.com/index.htmlhttp://www.aa1car.com/library.htmhttp://www.kemparts.com/scripts/141.asphttp://www.smogsite.com/articles.html

INTERNET QUIZINTERNET QUIZQ:Q: What type of program does your PC need What type of program does your PC need

to access the internet?to access the internet?A:A: An internet browser program.An internet browser program.

Q:Q: If you type in this address: If you type in this address:

www.smog check.ca.govwww.smog check.ca.gov in the browser address box, will the in the browser address box, will the system take you to that website? system take you to that website? (look closely)(look closely)

A:A: No, you cannot have spaces in a website No, you cannot have spaces in a website address.address.

INTERNET QUIZINTERNET QUIZ

Q:Q: Name three areas on BAR’s Smog Name three areas on BAR’s Smog Check website that can assist a Check website that can assist a licensed Smog Check technician:licensed Smog Check technician:

A:A: Vehicle test history, BAR Blasts, and Vehicle test history, BAR Blasts, and ARB’s aftermarket parts database.ARB’s aftermarket parts database.

Q:Q:Only dealer techs are allowed to Only dealer techs are allowed to access a manufacturer’s website. access a manufacturer’s website. True True oror FalseFalse??

A:A: FalseFalse, anyone can access their sites., anyone can access their sites.

INTERNET QUIZINTERNET QUIZQ:Q: Name a website where can you find a list Name a website where can you find a list

of vehicle manufacturers websites?of vehicle manufacturers websites?A:A: The “The “NNational ational AAutomotive utomotive SService ervice TTask ask

FForce” website: www.orce” website: www.nastfnastf.org..org.Q:Q: You must own a PC and pay money to a You must own a PC and pay money to a

service provider to get a personal internet service provider to get a personal internet address. address. True True oror False? False?

A:A: False.False. A number of websites will allow you A number of websites will allow you to sign up for email service, and provide to sign up for email service, and provide you with an email address for you with an email address for freefree. .

- INTERNET EXAM -- INTERNET EXAM -Your instructor will now hand out your Your instructor will now hand out your internet, take home, examination. As internet, take home, examination. As noted in the student course syllabus you noted in the student course syllabus you received prior to the start of this course, received prior to the start of this course, you will need to gain access to a PC and you will need to gain access to a PC and complete this examination. Your complete this examination. Your instructor should allow you at least instructor should allow you at least twotwo days to complete this assignment.days to complete this assignment.

-NOTE – NOTE – YOU CANNOT PASS THIS COURSE IF YOU CANNOT PASS THIS COURSE IF

YOU DO NOT COMPLETE THIS YOU DO NOT COMPLETE THIS EXAMINATION!EXAMINATION!

- INTERNET EXAM -- INTERNET EXAM -- NOTE – NOTE –

YOU CANNOT TAKE THE FINAL EXAM UNTIL YOU CANNOT TAKE THE FINAL EXAM UNTIL ALL EXAMINATIONS ARE TURNED IN!ALL EXAMINATIONS ARE TURNED IN!

1.1.Reading quizReading quiz2.2.Internet assignmentsInternet assignments3.3.Lab assignmentsLab assignments

We have computers here if you don’t have access. We have computers here if you don’t have access. Let us know and you can come in early or during the dayLet us know and you can come in early or during the day

****Be sure to bring your smog badge Be sure to bring your smog badge to exam night**to exam night**

Documents

BAR 2009 Technician Update Training Course