General Information

Oxygen sensor, general information






- Oxygen sensor with 4-pin harness connector
- Connector (1) for Oxygen sensor and ground wire 3 are attached to right engine mount

Terminal description of harness connector 2
1 (+) plus wire to OXS heater
2 (-) ground wire to OXS heater
3 shield for OXS signal wire
4 OXS signal wire


NOTE: Terminal 3 of connector 2 does not apply to California vehicles, starting model year 1991.

CAUTION! Do Not use any sprays or compounds containing silicone on engines equipped with Oxygen sensors. Do Not use these compounds on or near intake air system or near the Oxygen sensor. Silicone drawn into the intake air system is not burned during combustion and will lead to contamination and malfunctioning of the Oxygen sensor.