Technician a Says the Oxygen Sensor (O₂S)detects Misfires by Monitoring

Technician A says the oxygen sensor (O₂S) detects misfires by monitoring the amount of unburned fuel in the exhaust system. Technician B says a heating element inside the sensor allows the sensor to reach operating temperature quickly and to maintain its temperature during periods of idling or low engine load. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B

Correct Answer:

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