FAQ for Oxygen Sensor Repair
Q: What should be noted when servicing the Heated Oxygen and Oxygen Sensor?
A:
You should be careful not to remove the pigtail from either the heated oxygen sensor (HO2S) or the oxygen sensor (O2S). Removing the pigtail or the connector will affect sensor operation.
By BobGM Specialist
02/11/2022 Q: What should be noted when servicing the Heated Oxygen Sensor Pigtail?
A:
You should be careful not to remove the pigtail from the heated oxygen sensor. Damage or removal of the pigtail or the connector affects the proper operation of the heated oxygen sensor.
By BobGM Specialist
02/11/2022 Q: What should be noted when servicing the Heated Oxygen Sensor Wire?
A:
You should be careful to solder heated oxygen sensor wires. Soldering the wires will result in the loss of the air reference to the sensor.
By BobGM Specialist
02/11/2022 Q: What may cause oxygen sensor contamination?
A:
Contamination of the oxygen sensor can result from the use of an inappropriate RTV sealant (not oxygen sensor safe) or excessive engine coolant or oil consumption. You should eliminate the source of contamination before replacing the oxygen sensor.
By BobGM Specialist
02/11/2022 Q: What should you do when replacing the HO2S?
A:
First, you should clear a code with a scan tool, regardless of whether or not a DTC is set. Next, you should reset the HO2S heater resistance learned to value.
By BobGM Specialist
02/11/2022 Q: What is the recommended torque for the HO2S?
A:
The recommended torque is 42 N.m (31 LB-FT).
By BobGM Specialist
02/11/2022 Q: How to install the Heated Oxygen Sensor-Bank 2 Sensor 2?
A:
First, you should connect the HO2S electrical connector and install the CPA retainer. In addition, you should coat the threads with anti-seize compound GM P/N 12377953, or equivalent. Finally, the HO2S should also be installed.
By BobGM Specialist
02/11/2022 Q: What should be noted when servicing the Oxygen Sensor?
A:
You should be careful not to use cleaning solvents on the sensor. In addition, you should keep the electrical connector and the exhaust inlet end free of contaminants.
By BobGM Specialist
02/11/2022 Q: How to install the Heated Oxygen Sensor-Bank 1 Sensor 1?
A:
First, you should connect the HO2S electrical connector and install the CPA retainer. In addition, you should coat the threads with anti-seize compound GM P/N 12377953, or equivalent. Finally, the HO2S should also be installed.
By BobGM Specialist
02/11/2022 Q: How to remove the Heated Oxygen Sensor-Bank 1 Sensor 2?
A:
You should remove the connector position assurance (CPA) retainer and disconnect the HO2S electrical connector. In addition, the HO2S should also be removed.
By BobGM Specialist
02/11/2022 See more FAQs (12)