Multiple Choice
A technician is viewing a scan tool data stream to diagnose an OBD II system. The downstream HO2S has the same voltage switching rate as the upstream HO2S. Technician A says the air/fuel ratio is too rich. Technician B says the catalytic converter may be defective. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B
Correct Answer:
Verified
Correct Answer:
Verified
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