JACKLINE
Erj Ch. 29 Electronic Fuel Injection With Questions And 100% CORRECT ANSWERS
Terms in this set (30)
Which of the following is characteristic of a CSFI It requires very high fuel pressure.
system?
1) It requires very high fuel pressure.
2) It has oxygen sensors in each exhaust system.
3) It operates in three distinct modes.
4) PCM electronically controls position of
throttle plate.
What is a common air bypass system? idle air control valve
1) idle air control valve
2) oxygen sensor
3) fuel rails
4) poppets
Erj Ch. 29 Electronic Fuel Injection
1/6
, Which of the following have been replaced by speed density systems
MAF systems?
1) speed density systems
2) MPI systems
3) distributors
4) throttle by wire systems
Which statement best describes returnless fuel Their pressure regulator is mounted in the fuel tank.
systems?
1) They do not use a fuel pressure regulator.
2) They have no means of measuring fuel
pressure.
3) They eliminate the need for a throttle cable
and linkage.
4) Their pressure regulator is mounted in the fuel
tank.
Which fuel injection system sprays fuel into the TBI
throttle body chamber?
1) PFI
2) TBI
3) GDI
4) SFI
Which statement best describes electronic fuel Additional air is allowed into the manifold during start-up.
injection systems?
1) PFI systems use bottom fuel feeding injectors.
2) Plugged injectors usually result in higher fuel
pressure.
3) Additional air is allowed into the manifold
during start-up.
4) TBI systems use top fuel feeding injectors.
What is a typical fuel injector pulse width? 1 to 10 milliseconds
1) 1 to 10 milliseconds
2) 10 to 100 milliseconds
3) 100 to 1,000 milliseconds
4) 1,000 to 10,000 milliseconds
Erj Ch. 29 Electronic Fuel Injection
2/6
Erj Ch. 29 Electronic Fuel Injection With Questions And 100% CORRECT ANSWERS
Terms in this set (30)
Which of the following is characteristic of a CSFI It requires very high fuel pressure.
system?
1) It requires very high fuel pressure.
2) It has oxygen sensors in each exhaust system.
3) It operates in three distinct modes.
4) PCM electronically controls position of
throttle plate.
What is a common air bypass system? idle air control valve
1) idle air control valve
2) oxygen sensor
3) fuel rails
4) poppets
Erj Ch. 29 Electronic Fuel Injection
1/6
, Which of the following have been replaced by speed density systems
MAF systems?
1) speed density systems
2) MPI systems
3) distributors
4) throttle by wire systems
Which statement best describes returnless fuel Their pressure regulator is mounted in the fuel tank.
systems?
1) They do not use a fuel pressure regulator.
2) They have no means of measuring fuel
pressure.
3) They eliminate the need for a throttle cable
and linkage.
4) Their pressure regulator is mounted in the fuel
tank.
Which fuel injection system sprays fuel into the TBI
throttle body chamber?
1) PFI
2) TBI
3) GDI
4) SFI
Which statement best describes electronic fuel Additional air is allowed into the manifold during start-up.
injection systems?
1) PFI systems use bottom fuel feeding injectors.
2) Plugged injectors usually result in higher fuel
pressure.
3) Additional air is allowed into the manifold
during start-up.
4) TBI systems use top fuel feeding injectors.
What is a typical fuel injector pulse width? 1 to 10 milliseconds
1) 1 to 10 milliseconds
2) 10 to 100 milliseconds
3) 100 to 1,000 milliseconds
4) 1,000 to 10,000 milliseconds
Erj Ch. 29 Electronic Fuel Injection
2/6
