FAQ for Oxygen Sensor Repair
Q: What is the proper way to install the heated oxygen sensor?
A:
You can install the bank 2, oxygen sensor, reconnect the bank 2, and lower the vehicle.
By BobGM Specialist
04/04/2022 Q: What is the removal procedure for the heated oxygen sensor?
A:
The procedure is to disconnect the bank 1 oxygen sensor, the electrical connector, and the catalytic converter.
By OmarGM Specialist
01/04/2022 Q: What should be done when replacing the Heated Oxygen Sensor?
A:
You will need a code clear with a scan tool, regardless of whether or not a DTC is set and HO2S heater resistance learns reset with a scan tool.
By BobGM Specialist
31/03/2022 Q: What should I avoid doing when servicing the heated oxygen sensor?
A:
Do not apply contact cleaner or other materials to the sensor or vehicle harness connectors. These materials may get into the sensor causing poor performance. Do not damage the sensor pigtail and harness wires in such a way that the wires inside are exposed. This could provide a path for foreign materials to enter the sensor and cause performance problems. Do not remove or defeat the oxygen sensor ground wire, where applicable.
By OmarGM Specialist
31/03/2022 Q: What should I double-check when servicing the heated oxygen sensor?
A:
Ensure the sensor or vehicle lead wires are not bent sharply or kinked. Sharp bends or kinks could block the reference air path through the lead wire and the peripheral seal remains intact on the vehicle harness connector to prevent damage due to water intrusion.
By BobGM Specialist
31/03/2022 Q: When is the Oxygen Sensor the hardest to remove?
A:
The oxygen sensor is hard to remove when the engine temp is below 40C (120F). Excessive force may damage threads in the exhaust manifold or the exhaust pipe.
By OmarGM Specialist
30/03/2022 Q: Can the wiring, connector, or terminals on the heated oxygen sensor be repaired?
A:
Do not repair the wiring, connector, or terminals. Replace the oxygen sensor if the pigtail wiring, connector, or terminal is damaged.
By BobGM Specialist
07/01/2022 Q: How do I check for system contamination?
A:
Remove the HO2S and visually inspect the portion of the sensor exposed to the exhaust stream to check for contamination.
By BobGM Specialist
06/01/2022 Q: How do I install the Heated Oxygen Sensor (Bank 1 Sensor 1)?
A:
Start with coating the threads of the heated oxygen sensor with the anti-seize compound. Then install the heated oxygen sensor and reconnect the bank 1 oxygen sensor and electrical connector to the engine wiring harness electrical connector. Lower the vehicle.
By BobGM Specialist
06/01/2022 Q: How do I install the Heated Oxygen Sensor (Bank 2 Sensor 1)?
A:
Start with coating the threads of the bank 2 oxygen sensor 1 with the anti-seize compound. Next, install the bank 2 oxygen sensor 1 in the exhaust manifold. Finally, reconnect the bank 2 oxygen sensor 1 electrical connector to the engine wiring harness electrical connector.
By OmarGM Specialist
06/01/2022 See more FAQs (9)