Code P1374 Chevrolet Description
The P1374 code for Chevrolet vehicles refers to a malfunction in the 3X reference circuit. In simpler terms, this means there is a problem with the circuit that provides a reference signal to the Engine Control Module (ECM) from the camshaft position sensor. The camshaft position sensor is a critical component that helps the ECM determine the precise position of the camshaft relative to the crankshaft. This information is vital for the ECM to accurately control ignition timing and fuel injection in the engine.
Common Causes of Chevrolet Code P1374
NOTE: The listed causes may not be a complete list of all potential issues, and there may be other causes.
- Faulty camshaft position sensor
- Wiring issues in the 3X reference circuit
- ECM malfunction
- Poor connection between the sensor and the ECM
- Electrical problems such as corrosion or loose connections
Symptoms of P1374 Chevrolet
- Rough idle or engine vibrations
- Engine misfires
- Reduced fuel efficiency
- Engine stalling
- Check Engine light is on
How to Fix Chevrolet Code P1374
- Diagnose the issue using a scan tool to retrieve the error code and check the 3X reference circuit for any faults.
- Inspect the wiring for any signs of damage or corrosion. Repair or replace any damaged wires.
- Check the camshaft position sensor for proper operation. Replace it if necessary.
- Verify the connection between the sensor and the ECM, ensuring it is secure and free of debris.
- Clear the error code from the ECM and test the vehicle to ensure the issue has been resolved.