Power Vision Log Tuner user guide

Before you begin using the PV Log Tuner be sure to read this guide for software installation and

operation instructions plus other important information. The Power Vision Log Tuner User

Guide provides detailed information about PV Log Tuner and its use in conjunction with Power

Vision and Auto Tune. This guide is designed to be a reference tool.

Follow the steps below.

PV Log Tuner is an easy to use program developed by Dynojet to use data logs from the Power

Vision and generate a tune specifically for your bike. You don't need to have a vast

understanding of the Harley EFI system to use the PV Log Tuner. We’ve made tuning your bike

easier than ever. The PV Log Tuner can tune your EFI equipped Harley Davidson using two

methods; Log Tuner Basic and Log Tuner Pro.

Over View

1. Theory of operation

2. PV Log Tuner installation

3. PV Log tuner Tune file setup

• Retrieving a tune from the Power Vision for editing

• Log Tuner Basic tuning method

• Log Tuner Pro tuning method

4. WinPV value file Configuration

5. Configuring your Power Vision

• Creating a datalog file

• Retrieving log file from Power Vision

6. Using PV Log Tuner

1. Theory of operation

Log Tuner basic

Log Tuner Basic utilizes the factory narrow band o2 sensors to make the necessary

corrections needed to properly calibrate your ECM using the Dynojet Power Vision.

It allows you to extend the closed loop operating range, pull a few degrees of timing and

let the data that’s natively on board make the corrections for you. This can be achieved

because the factory narrowband o2 sensors are extremely accurate at or very near to

stoich (14.6 AFR or lambda 1) air fuel ratio. This is great for fuel economy and light

load, but when it comes time to tune for best power and torque, the Log Tuner Pro

should be used.

Prior to logging, you should set up your calibration (tune) to allow the Log Tuner and its

process to work more efficiently. *****so how do you do this? Put something here telling

them where to look or what to do*****

Log Tuner Pro

Unlike any other tuning tool on the market, PV Log Tuner in conjunction with Dynojet

Auto Tune gives you the ability to have the best of both worlds, great fuel economy and

light load performance and great power and torque.

Log Tuner Pro utilizes the Dynojet Auto Tune module which uses wide band oxygen

sensor technology. This is the most accurate way to calibrate your ECM. By utilizing

wideband o2 sensors, you can tune for best economy AND best power / torque. The

wideband sensors used in our Auto Tune module are extremely accurate at all of the

operating ranges of your motorcycle. The Auto Tune module will plug into a PV and

allow you to monitor and log front and rear lambda (based on wide band sensors).

Since the H-D data bus broadcasts “desired AFR”, or “Set AFR”, you’ll have that

available, along with the other required data channels (such as MAP, RPM, TP, and

Lambda 1, Lambda 2, front and rear VE), for data-logging with Log Tuner that will

make correcting your (lambda / AFR) easier.

Log Tuner will analyze two files: a log file created from a Power Vision that is equipped

with our Auto Tune device and .pvv file (Power Vision Value File from the WinPV

tuning software). It will then create a corrected “Power Vision Value File” to fix the

“difference” between "desired AFR" and "actual AFR".

The Dynojet Auto Tune kits you need for Log Tuner Pro:

AT-110 AUTOTUNE,HD-J1850,PWRVSN

AT-110B AUTOTUNE,HD-J1850,PWRVSN,BUNGS

AT-120 AUTOTUNE,HD-CAN,PWRVSN

AT-120B AUTOTUNE,HD-CAN,PWRVSN,BUNGS

Prior to logging, you should set up your calibration (tune) to allow the Log Tuner and its

process to work more efficiently (See Step 3 below for more details).

Log Tuner Pro can also use the factory narrow band o2 sensors to create the corrections

needed to properly calibrate your ECM at idle and light load ranges, and then utilize the

Dynojet Auto Tune module’s wide band oxygen sensors to tune for best power and

torque. Auto Tune Pro uses data that’s natively already on board and the Dynojet

wideband technology to provide you with the best of both features.

2. PV Log Tuner software Installation Follow these steps to install Log Tuner Software.

1. Insert the Log Tuner CD into your CD-ROM drive. The launch program will run

automatically showing the Setup Wizard.

If auto-run is disabled on your computer, click Start on the Windows® task bar, and

click Run. Type D:\setup.exe, where D is the letter that corresponds to your CD-ROM

drive, or the appropriate directory in order to access the setup.exe on the CD-ROM.

2. Click Next to continue.

3. Select the location where the Log Tuner software will be installed and click Next to

continue.

Note: Dynojet recommends that you do not change the default destination folder.

4. Confirm the installation by selecting Next to continue. Select Back to change folder

location.

5. Click Next when installation is complete.

6. Click Finish to complete Setup

3. Tune File setup

To use Log tuner Basic and Pro you will need to set up the ECM’s tune file. The instructions

below will guide you through retrieving the tune file from the Power Vision and making

changes needed for using Log Tuner.

1. Turn the ignition to the on position (key on, kill switch to "on", engine off)

2. Go to “Program Vehicle” on the Power Vision

3. Select "Load Tune"

4. Select “Load Copy”

5. Select “Load Copy of Original”(Loads a copy of the original file that was saved when the

PV married itself to the ECM) or “Load Copy of Current”(Loads a copy of the current

tune file that is currently in the ECM)

6. Select a slot to place the tune file.

7. Turn the key off

8. Remove the Power Vision

9. Plug in the USB cable from the Power Vision to your PC

10. Verify that the Power Vision boots up and says "PC Link Mode Active"

11. Launch the WinPV software application

12. On the menu bar, go to "Power Vision", and choose "Get tune from Power Vision”

13. Select the “Copy of original” or Copy of Current” tune file.

14. This is the file that your tune will be built from. Save this tune file to your PC for safe

keeping.

Log Tuner Basic - Tuning method

1. Under Tune items, Select > Fuel > Air Fuel Ratio (Lambda or AFR). Extend the closed

loop operating range by changing all values to (14.6 or Lambda 1). This disables the

ECM’s ability to transition to open loop.

2. Under Tune items Select > Limits & Switches > PE Enable RPM. Raise the PE Enable

RPM limit above the current rev limiter. This will effectively disable Power

Enrichment.

3. Under Tune Items Select > Spark > Spark Advance Front and Rear. PULL (remove) at

least 3 to 4 degrees of spark advance from the front and rear cylinders. This is

necessary because we are commanding a leaner AFR / Lambda for Log Tuner Basic,

which can increase the possibility of detonation/engine knock. Pulling timing allows

you to operate at leaner AFR/lambda with less possibility of detonation.

Log Tuner Pro - Tuning method

1. Under Tune Items Select > Fuel > Air Fuel Ratio (Lambda or AFR). Change A/F or

Lambda target table to one set value. This ensures the ECM will only target one A/F

ratio. This also disables the ECM’s ability to close loop on AFR targets of 14.6 or

lambda .98.

You can also use Log Tuner pro as a hybrid tuner if the vehicle is equipped with factory

narrowband o2 sensors and the Dynojet Auto Tune module. Leave the “Set” A/F or

Lambda table alone for this method. Log Tuner will process the vehicle’s native data in

its closed loop operating range and use the Dynojet Auto Tune module for any data

retrieved in open loop.

2. Under Tune Items Select > Limits & Switches > PE Enable RPM. Raise the PE Enable

RPM limit above the current rev limiter. This will effectively disable Power

Enrichment.

3. Under Tune Items Select > Limits & Switches > Adaptive Control. Disable Adaptive

fuel control by changing 1 to 0. Adaptive fuel control takes the O2 trims that are

learned over a period of time and applies them to the final fuel calculation. Note:

Resetting fuel trims using the Power Vision will help prevent any unexpected fuel

changes during the tuning session.

4. Under Tune Items Select >Limits & Switches > Heated O2 Sensors. Disable the

Heated O2 sensors by changing 1 to 0. This will allow you to change multiple pipes

without having to reinstall the factory O2 sensors every time.

4. Configuring WinPV Value File

Once the tune file is complete, you will need a "Power Vision Value File" (.pvv). The .pvv

file needs to contain tables that directly affect fuel and spark. Follow the instructions below

to configure the WinPV value file.

.

1. Create a "Power Vision Value File" (.pvv). The .pvv file needs to contain the

following

• VE Front

• VE Rear

• Spark Advance Front

• Spark Advance Rear

• Set AFR table (Lambda/Stoich)

Generate the value file by checking the small box next to the parameter (see

image below) in WinPV, and then going to "File > Save Selected Values".

5. Configuring Power Vision

PV Log Tuner software requires logs to be generated with the Power Vision, in order to

create the corrections needed for the tune. Follow the instructions below as a guide to set

up the Power Vision unit for logging with Log Tuner Basic and Log Tuner Pro.

1. Set up the Power Vision to log the following channels.

• MAP*

• Engine Temp*

• Warm-up AFR or Lambda*

• TP*

• RPM*

• VE New Front*

• VE New Rear*

• Lambda 1**

• Lambda 2 **

• Accel Enrich*

• Spark Knock F*

• Spark Knock R*

• Desired Air/Fuel (Ratio)*

• Desired Air/Fuel (Lambda)*

* From H-D data bus

** From Auto Tune (when equipped)

2. Creating a datalog file

1. Select > Datalog > Gauges

2. Select gauge template by using arrows in bottom left or right hand corner.

3. Select > None within a gauge to edit the gauge properties

4. Select > Signal / None (open space to the right of signal)

5. Select > Harley or DJ Wideband

6. Press > Select to confirm choice or Cancel to return to gauge properties screen

7. Select > Signals from section 1

8. Select > OK to confirm selection or Cancel to return to gauge properties screen

9. Select > Start Log to begin logging

10. Select > Stop Log to save the log to the Power Vision

3. Retrieving log file from Power Vision

1. Select Power Vision > Get Log from PV or Click Get Log button

2. Select the log file(s) you wish to get from the power Vision.

3. Click OK.

6. Using PV Log Tuner

1. Open Log tuner; you can start Log Tuner two ways: by double-clicking the desktop

icon or by selecting Start > All Programs > Power Vision Log Tuner > Log Tuner.

2. Click> Options, then select the method you would like to use, Log Tuner Basic or

Pro.

For Log Tuner Basic

Check (Use H-D OEM o2 sensors for corrections)

For Log Tuner Pro

Check (Use Auto Tune for corrections)

Or

Note: This feature only works if the vehicle is equipped with OEM narrowband o2

sensors and Dynojet wideband o2 sensors)

3. Click >“Open PVV”. Open the value file that was created in “Configuring WinPV

value file”

4. Click >“Open Log(s)”. Open the datalog files that were created. If you have not

saved the logs from the Power Vision to the PC yet; open WinPV and select > Power

Vision > Get Log. This may take a minute depending on how many or how large

your data log file is.

5. Click >“Calc Tune”. This will calculate the new V/E and Spark values for the

running conditions and AFR that were data logged. You can click on the tree view to

see each calculated table.

6. Click >“Apply Tune”. This step will copy the new calculated V/E and Spark values

to the V/E and Spark tables from the original Power Vision value file that was loaded

in step 4.

7. Click > “Save PVV”. This will save the new “calculated” value file (with the new VE

values).

8. Open WinPV then open the tune file you were using when the original value file was

created in “Configuring WinPV Value File”. Select (File > Load All Values). Locate

the new .pvv (Power Vision value file) you saved in step 7.

The values that are being imported are corrected VE and spark tables that the Log

Tuner generated by looking at the difference between actual VE and NEW VE or

Actual AFR and desired AFR (when using Log Tuner Pro). Log Tuner also will apply

corrections to the spark tables if knock was detected. You should repeat this process

until the errors are minimal, perhaps within +/- 2%.