Author Question: A P0132 DTC is being discussed. Technician A says that a defective HO2S could be the cause. ... (Read 100 times)

lindiwe · **on:** Jun 22, 2018

A P0132 DTC is being discussed. Technician A says that a defective HO2S could be the cause. Technician B says that an HO2S signal wire shorted-to-ground could be the cause. Which technician is correct?

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

Question 2

A cylinder power balance test is performed on a 4 cylinder engine. Cylinders 1, 2, and 3, all drop 175 RPM when disabled with a scan tool. Cylinder 4 drops 50 RPM when disabled. The following statements are all correct EXCEPT ________.

A) Cylinder 4 is much stronger than 1, 2, and 3
B) Cylinder 4 is much weaker than 1, 2, and 3
C) There may be a mechanical problem with cylinder 4
D) This test could also be conducted by grounding the plug wire for each cylinder