A sequential fuel injection system uses a ________ to time the ...

[debasdf]

A sequential fuel injection system uses a ________ to time the fuel injection pulses.
 
  A) Spark sensor B) Throttle body sensor
  C) MAP sensor D) CMP sensor

Question 2

Technician A says that a wide-band oxygen sensor, also called a lean air-fuel (LAF), can detect air-fuel ratios from as rich as 10:1 to as lean as 23:1. Technician B says that the oxygen sensor signal determines fuel trim which is used to tailor the air-fuel mixture for the catalytic converter. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

[popopong]

Answer to Question 1

D

Answer to Question 2

C