Which wire on a typical TP sensor should be back-probed to check ...

[Jkov05]

Which wire on a typical TP sensor should be back-probed to check the voltage signal to the PCM?
 
  A) Signal wire
  B) 5-volt reference (Vref)
  C) Ground wire
  D) Meter should be connected between 5-volt reference and ground.

Question 2

A low O2S voltage could be due to ________.
 
  A) A rich exhaust B) A lean exhaust
  C) A defective spark plug wire D) Both B and C

[Beatricemm]

Answer to Question 1

A

Answer to Question 2

D

[Jkov05]

Thanks for the timely response, appreciate it

[mcarey591]

Gracias!