Pontiac P1371 Code Description
The diagnostic trouble code P1371 (DTC) for Pontiac vehicles indicates a problem with the low-resolution signal from the crankshaft position sensor. The crankshaft position sensor is a critical component of the ignition system, responsible for detecting the position and speed of the crankshaft, which is essential for the engine control module (ECM) to determine the correct ignition timing and fuel injection strategy.
Common Causes of Pontiac P1371
NOTE: The listed causes may not be a complete list of all potential issues, and there could be other causes.
- Faulty crankshaft position sensor
- Damaged wiring or connectors
- ECM malfunction
- Issues with the reluctor wheel on the crankshaft
- Mechanical damage to the crankshaft position sensor
Symptoms of Pontiac P1371
- Engine misfires
- Rough idle or stalling
- Poor acceleration
- Difficulty starting the engine
- Reduced fuel efficiency
How to Fix Pontiac P1371 Code
- Diagnose the issue using a scan tool to confirm the P1371 code and identify the exact cause of the problem.
- Inspect the crankshaft position sensor, wiring, and connectors for any signs of damage or corrosion.
- Test the resistance and output voltage of the crankshaft position sensor to determine if it is functioning properly.
- Replace the faulty crankshaft position sensor or repair any damaged wiring or connectors as needed.
- Clear the DTC from the ECM memory and perform a road test to ensure the issue has been resolved.