Heated Exhaust Gas Oxygen (Ho2S) Sensor: Removal

Disconnect negative battery cable. Locate O2 sensor, mounted in exhaust pipe below exhaust manifold, or in "Y" pipe junction near catalytic converter inlet. Unplug electrical connector from O2 sensor. Sensor may be difficult to remove when engine temperature is less than 120°F (48°C). Carefully remove O2 sensor from exhaust pipe.