How to check O2 sensor for p1128 code?
How to check O2 sensor for p1128 code? No, check the O2 sensor 1/1 (for P1128 code) and O2 sensor 2/1 (for P1129 code) signal circuit for a short to ground, open or short to voltage and repair if necessary. Inspect the O2 sensor 1/1 (for P1128 code) and O2 sensor 2/1 (for P1129 code) connector and the PCM harness connector. How to test p1128 Bank 1 and 2? Turn the ignition on with the scan tool actuate the sensor 1/1 heater test (for P1128 code) and 2/1 heater test (for P1129 code). With the scan tool monitor O2 sensor...