A signal from the knock sensor causes the engine control module ...

[cnetterville]

A signal from the knock sensor causes the engine control module (ECM) to take what action?
 
  A) Slow fuel pump rotation B) Retard the timing
  C) Lean out the fuel injectors D) Increase spark voltage

Question 2

Technician A says to use a normal spark plug when checking for spark. Technician B says that a spark tester should be used to check for spark. Which technician is correct?
 
  A) Technician A only B) Technician B only C) Both technicians D) Neither technician

[Liamb2179]

Answer to Question 1

B

Answer to Question 2

B

[cnetterville]

TYSM

[jamesnevil303]

Excellent