Removal & Installation
- Front HO2S is mounted in exhaust pipe in front of catalytic converter. Rear HO2S (if equipped) is located after the catalytic converter. HO2S has a permanent pigtail which must be protected from damage when removing sensor. Ensure sensor is free of contaminants. DO NOT use any cleaning solvents.
- Ensure exhaust system is cool before removing HO2S, or thread damage may occur. Disconnect negative battery cable and HO2S connector. Remove HO2S.
- To install, reverse removal procedure. If reinstalling old sensor, apply anti-seize compound to HO2S threads. Tighten to specification. See TORQUE SPECIFICATIONS. Install negative battery cable.