P0339
Crankshaft Position Sensor A Circuit Intermittent
Generic code
Ignition System
High severity
Moderate repair
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What P0339 means
- The fault code P0339 indicates that there is an intermittent issue with the circuit that controls the crankshaft position sensor 'A'. This may cause the engine to run poorly or not start at all.
Possible symptoms
- Illuminated check engine light
- Starting problems or stalls
- Rough idle or poor acceleration
- Decreased fuel efficiency
Possible causes
- Damaged or faulty crankshaft position sensor
- Loose or corroded electrical connections in the circuit
- Damaged or frayed wiring in the circuit
- Failed engine control module (ECM)
Related parts
- Crankshaft Position Sensor: The crankshaft position sensor monitors the position of the crankshaft to regulate fuel injection. Problems lead to engine misfire and engine stalling
Possible solutions
- Replace the crankshaft position sensor
- Check and repair any damaged or corroded electrical connections in the circuit
- Check and repair any damaged or frayed wiring in the circuit
- Replace the engine control module (ECM) if necessary
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P0339 on OBD DashX
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