Oil pressure sensor/switch 1990 C4
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Joined: Jul 2020
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From: Houston Texas
Oil pressure sensor/switch 1990 C4
I have a 1990 C4 Base Model
I have two issues:
Oil pressure gauge goes off the gauge maximum when I turn the key to on or the engine starts. I removed the switch and sender this morning. My two wiring harnesses are three and the other one wire. Both sensor and switch are three prongs. Is there a test that can be done on the sensor and switch? Is there a separate device for the sensor and switch? Both are three-prong sensors.
Secondly, my Service Engine Soon light comes on when I start the engine. I got codes H41 and H43. I changed out the knock sensor and the 02 Sensor. And fix, please?
I have two issues:
Oil pressure gauge goes off the gauge maximum when I turn the key to on or the engine starts. I removed the switch and sender this morning. My two wiring harnesses are three and the other one wire. Both sensor and switch are three prongs. Is there a test that can be done on the sensor and switch? Is there a separate device for the sensor and switch? Both are three-prong sensors.
Secondly, my Service Engine Soon light comes on when I start the engine. I got codes H41 and H43. I changed out the knock sensor and the 02 Sensor. And fix, please?
