When the exhaust is lean, the PCM applies a ________ current into ...

[Destiiny22]

When the exhaust is lean, the PCM applies a ________ current into the pump cell.
 
  A) Neutral B) Negative C) Positive D) None of these

Question 2

A cylinder contribution test is performed using a ________.
 
  A) Scan tool B) Compression or cylinder leakage tester
  C) Digital storage oscilloscope (DSO) D) Both a scan tool and a DSO

[braelync]

Answer to Question 1

C

Answer to Question 2

A

[Destiiny22]

YES! Correct, THANKS for helping me on my review

[kthug]

Thanks for the timely response, appreciate it