What does code P0340 mean on a Pontiac and is it safe to drive?
P0340: Camshaft Position Sensor Circuit Malfunction. Here's what it means on your Pontiac, what usually causes it, what repairs typically cost, and how safe it is 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 for your Pontiac
- 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 Pontiac, repairs for P0340 often fall between $100 and $500, depending on the cause and whether you use OEM or aftermarket parts. Labor rates vary by location.
Known issues on Pontiac
Pontiac Ecotec 2.4L P0340 cam sensor fault can be a failed sensor or a timing chain stretch issue. On these engines, P0340 alongside P0341 strongly indicates timing chain wear. Inspect the chain and tensioner before replacing either sensor.
Most commonly affected models
G6 2.4L Ecotec 2005–2010Solstice 2.4L 2006–2010Vibe 2.4L 2009–2010