Chevrolet P1188: Engine Oil Pressure Sensor High Input
Is your scanner showing Chevrolet P1188?
No worries. We'll show you what it means and how to deal with it.
Chevrolet P1188: Engine Oil Pressure Sensor High Input
OVERVIEWWhat Does The Chevrolet P1188 Code Mean?
Engine running over 30 minutes, and the PCM detected the Engine Oil Pressure (EOP) sensor indicated less than -23ºF for 4.5 seconds. The ECT and EOP sensors should be within a few degrees after sitting overnight.
What Are The Potential Causes Of The Chevrolet P1188 Code?
- EOP sensor signal circuit is open, or the EOP sensor ground circuit is open
- EOP sensor is damaged or it has failed (possible open circuit)
- PCM has failed
Recommended Parts
Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:
Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!
Reference Sources
GM, 2013, Service Bullettin – Prior To Any Circuit Testing.
