P0522 Engine Oil Pressure Sensor Low Voltage - 2007 Chevrolet Pickup Diagnosis and Fix
I own a 2007 Chevrolet Pickup and recently encountered a P0522 diagnostic code indicating low voltage from the engine oil pressure sensor. After replacing my mass airflow sensor and clearing the old code, this new issue began. The truck starts normally and runs smoothly for about 45 seconds before suddenly stalling—though it remains in gear and won't move. After sitting for approximately five minutes, the vehicle resumes normal operation. I'm not sure what to check next. Could this be related to oil pressure or a transmission issue? Any guidance on troubleshooting steps would be greatly appreciated.
Check engine oil pressure using an oil pressure gauge—ensure proper oil level and condition. The oil pressure sensor is located at the rear of the engine, near the top (where a distributor would have been in older models). Inspect the sensor connector for tightness, corrosion, or damage. Measure voltage on the wires with the key off (KOEO) to verify signal integrity. Note: Low oil pressure typically doesn't cause complete stalling; however, it's still worth checking. Are there any other diagnostic codes present? Also confirm transmission fluid level—does your OBD2 scanner read all stored codes? The symptoms suggest a potential transmission issue alongside the P0522 code.