Main Oxygen Sensor
OXYGEN SENSOR (FEEDBACK) INSPECTION1. ALLOW THE ENGINE TO WARM UP TO NORMAL OPERATING TEMPERATURE.
2. INSPECT FEEDBACK VOLTAGE.
- Connect the positive (+) tester probe of a voltmeter to terminal VF1 of the data link connector (DLC1), and negative (-) tester probe to terminal E1 of DLC1.
- Perform the test as described in the following image.