Which of the following problems would NOT cause a oxygen sensor to appear bad?
A)leaking fuel injector
B)leaking intake manifold gasket
C)leaking EGR valve
D)leaking muffler to tailpipe gasket

Question

Quizplus · Accepted Answer

A leaking muffler to tailpipe gasket would not affect the oxygen sensor's ability to measure the oxygen levels in the exhaust gases before they exit the vehicle. The oxygen sensor's function is to measure the oxygen content in the exhaust gases to help the engine control module adjust the air-fuel mixture. Leaks in the exhaust system past the sensor do not influence its readings.

Which of the Following Problems Would NOT Cause a Oxygen