FAQ for Oxygen Sensor Repair
Q: What is the removal procedure for the heated oxygen sensor (position 2)?
A:
The procedure is to disconnect the negative battery cable, disconnect the electrical connector, and remove the heated oxygen sensor 2 (HO2S2).
By BobGM Specialist
02/11/2022 Q: What is the recommended torque when installing the HO2S1 to the exhaust manifold?
A:
You can tighten the oxygen sensor to 42 N.m (31 lb-ft).
By BobGM Specialist
02/11/2022 Q: What is the removal procedure for the heated oxygen sensor (position 1)?
A:
The procedure is to disconnect the negative battery cable, disconnect the front heated oxygen sensor (HO2S1) connector, and remove the HO2S1 from the exhaust manifold.
By BobGM Specialist
02/11/2022 Q: What must be replaced if an open or short exists within the flex wiring harness?
A:
The complete harness must be replaced.
By BobGM Specialist
02/11/2022 Q: How do you install the heated oxygen sensor (position 2)?
A:
You can coat the threads of the HO2S2 with an anti-seize compound, install the HO2S2, connect the electrical connector and connect the negative battery cable.
By BobGM Specialist
02/11/2022