got check engine light
- Thread starter FirstPlaceOils
- Start date
P0325 - Knock Sensor 1 Circuit Malfunction (Bank 1) Possible causes: knock sensor circuit short to ground, knock sensor circuit short to power, knock sensor circuit open, damaged knock sensor, damaged PCM. Check the wiring for any areas that got pinched etc, but wiring issues aren't as common as a failed sensor. A pcm that's damaged is unlikely but can happen.
P1381 - Variable Cam Timing Over-advanced (Bank 1) Possible causes: Cam timing improperly set, no oil flow to the VCT piston chamber, low oil pressure, VCT solenoid valve stuck closed, camshaft advance mechanism binding (VCT unit). There is the possibility that the variable cam issue is causing the knock sensor code, definitely go after the variable cam timing issue first. It's most likely a bad VCT solenoid.
P1381 - Variable Cam Timing Over-advanced (Bank 1) Possible causes: Cam timing improperly set, no oil flow to the VCT piston chamber, low oil pressure, VCT solenoid valve stuck closed, camshaft advance mechanism binding (VCT unit). There is the possibility that the variable cam issue is causing the knock sensor code, definitely go after the variable cam timing issue first. It's most likely a bad VCT solenoid.
