What is the diagnostic method for oxygen sensor failure?
1 Answers
The diagnostic method for oxygen sensor failure is: 1. Warm up the engine to normal operating temperature; 2. Connect the negative probe of the multimeter's voltage range to the E1 terminal in the fault detection socket or the negative terminal of the battery, and connect the positive probe to the OX1 or OX2 terminal in the fault detection socket or the output wire on the oxygen sensor harness connector; 3. Keep the engine running at 2500 rpm and check if the voltmeter needle swings between 0 and 1V, recording the number of swings within 10 seconds; 4. Check if the oxygen sensor is damaged; 5. Inspect the appearance color of the oxygen sensor.