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    Advanced Engine Performance Diagnosis
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    Exam 29: Symptom-Based Diagnosis
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    An Oxygen Sensor Has Failed Low (Low Voltage Output)
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An Oxygen Sensor Has Failed Low (Low Voltage Output)

Question 15

Question 15

Multiple Choice

An oxygen sensor has failed low (low voltage output) . This will cause the PCM to ________.


A) command a leaner mixture
B) command a richer mixture
C) set a DTC
D) Both A and C

Correct Answer:

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