2014 Hyundai P0340: What It Means & Is It Safe to Drive?
P0340 on the 2014 Hyundai: Camshaft Position Sensor Circuit Malfunction. Here's what it means, what usually causes it, what repairs typically cost, and whether it's safe to keep driving.
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What this code means
The PCM is not receiving a valid signal from the camshaft position sensor. Affects ignition timing and fuel injection.
Common causes on the 2014 Hyundai
- Failed camshaft position sensor
- Wiring or connector issue
- Timing chain/belt misalignment (less common)
Symptoms
- Check Engine Light
- No start or hard start
- Rough run, stalling
- Reduced power
Typical fixes
- Replace camshaft position sensor
- Repair wiring/connector
- Verify timing if sensor replacement doesn't fix
Repair cost range
For a 2014 Hyundai, repairs for P0340 typically fall between $100 and $500, depending on the root cause and labor rates in your area.
Known issues on Hyundai
Hyundai Theta-I engines frequently see P0340 from CMP sensor failure; the sensor wiring connector is prone to corrosion. Clean the connector pins and retest before replacing the sensor itself.
Most commonly affected models
Sonata 2006–2010Santa Fe 2007–2012Elantra 2006–2010