A/F Sensor (Sensor 1) Inspection

NOTE:  Since there is no direct method to test the inspection item, troubleshooting is performed using a known-good component.

Test Procedure 

• Install a known-good A/F sensor (Sensor 1) and attempt to reproduce the failure.

Results 

• If the failure is reproduced, there is a problem with other related components.
• If the symptom/DTC goes away, the A/F sensor (Sensor 1) must be faulty.