What does code P0340 mean and is it safe to drive?
P0340: Camshaft Position Sensor Circuit Malfunction. Here’s what it means, what usually causes it, what repairs typically cost, and how urgent it is to keep driving.
Powertrain
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
- 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
Repairs for P0340 often fall between $100 and $500, depending on the cause and your vehicle.