A General Motors vehicle is being checked using mode $06 for the proper operation of the oxygen sensor. The rich-to-lean sensor switch time is 0.030 seconds. Technician A says that this indicates a slow-reacting oxygen sensor. Technician B says that the oxygen sensor is reacting correctly and is okay. Which technician is correct?
A) Technician A only
B) Technician B only
C) Both technicians A and B
D) Neither technician A nor B

Question

Quizplus · Accepted Answer

The rich-to-lean sensor switch time of 0.030 seconds indicates a quick and responsive oxygen sensor. This means Technician B is correct in saying the oxygen sensor is reacting correctly and is okay. A slow-reacting sensor would have a significantly longer switch time.

A General Motors Vehicle Is Being Checked Using Mode $06