P0339
Crankshaft Position Sensor A Circuit Intermittent
Severity: MEDIUM
Symptoms
- Misfires
- Difficulty starting the engine
- Unstable engine idling
- The engine stalls
- Check Engine light comes on
Causes
- Poor contact in sensor connectors
- Wiring harness damage
- Malfunction of the crankshaft position sensor
- Circuit Grounding Problems
- Mechanical damage (for example, crankshaft runout)
How to Fix
- Check sensor connectors for oxidation or damage.
- Inspect the wiring harness for damage
- Check the resistance and signal of the sensor using a multimeter
- Replace the crankshaft position sensor if it is faulty
- Check circuit grounding