Carburetors & Fuel Injection

Carburetors & Fuel Injection

1. Describe the major parts of fuel injection.

- Air cleaner, mass air flow sensor, injector, pressure regulator, electric fuel pump

Carburetors & Fuel Injection

2. Describe a supercharger.

- This mechanism pumps air into the engine. It is most useful at high speeds.

Carburetors & Fuel Injection

3. Describe a turbocharger.

- This mechanism uses exhaust gas to force more air fuel mixture into the engine.

Carburetors & Fuel Injection

4. Explain why fuel injection systems are computer controlled.

- The fuel injection system is computer controlled to give a 14.7 to 1 air fuel ratio out of each injector.

Carburetors & Fuel Injection

5. List the six basic carburetor circuits.

- Idle circuit, low speed circuit, high speed full power circuit, acceleration circuit, choke circuit, secondary circuit.

Carburetors & Fuel Injection

Test

6. How does a carburetor work?

- It uses Bernulies theory to create a vacuum to atomize fuel and air at a 14.7 to 1 air fuel ratio.

Carburetors & Fuel Injection

Test

7. What does a fuel pump do?

- The fuel pump supplies fuel from the tank to the intake on the engine.

Carburetors & Fuel Injection

Test

8. List two types of fuel pumps.

- Mechanical and Electric