Electronic Fuel Injection

High fuel system pressurization is required to __________.

Select one:

• Overcome high cylinder pressures

• Overcome short time for combustion process

• Produce fine atomization

• All of these are correct

Injectors open one after another.

• Sequential injection

• Multiport

  injection

• Electronic

  fuel injection

• Firing order injection

Measures oxygen content in engine exhaust system to check combustion efficiency.

• oxygen sensor

• exhaust gas analyzer

• air flow sensor

• air sensor

In an EFI system, a coil- or solenoid operated valve.

• throttle body injection

• throttle valve

• fuel injector

• automatic door locks

Has injector nozzles in a throttle body assembly on top of engine

• throttle body injection

• fuel injector

• throttle body

• engine control module

The brain of the electronic fuel injection system.

• engine control module

• electronic fuel injection

• air flow sensor

• CPU

Has a fuel injector in the port going to each cylinder

• multi-port fuel injection system

• Sequential injection

• Simultaneous injection

• Electronic fuel injection

Uses various engine sensors and a computer to control opening and closing of injection valves.

• Electronic Fuel Injection

• engine control module

• Simultaneous injection

• Throttle body injection system

The sensor used to detect engine speed is?

• idle air valve

• throttle position sensor

• manifold absolute pressure sensor

• crankshaft position sensor

What is the average psi of a multi-point fuel injection system?

• 0-15

• 15-30

• 20-40

• 40-80