Author Question: Normal engine vacuum at idle is ________. A) 3-6 in Hg B) 120 in Hg C) 3 PSI D) 17-21 in ... (Read 166 times)

nramada · **on:** Jun 22, 2018

Normal engine vacuum at idle is ________.

A) 3-6 in Hg B) 120 in Hg C) 3 PSI D) 17-21 in Hg

Question 2

Technician A says that oxygen sensors can be tested using a test light or jumper wire. Technician B says conditions can occur that cause the oxygen sensor to be fooled and give a false lean or false rich signal to the PCM. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician