OBD-II code · Powertrain (generic)
P0347 Camshaft Position Sensor A Circuit Low (Bank 2)
Camshaft position sensor A on bank 2 reads below lower plausibility — short to ground. The camshaft position sensor identifies which cylinder is on the compression stroke — without it the ECM cannot run sequential injection or coil-on-plug ignition correctly.
Is it safe to drive with P0347?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyShort to ground
- Less likelyConnector pins corroded - high contact resistance
- Less likelyHarness chafing through insulation
Symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Often, with basic tools
- Typical labour
- 0.5–2.5 h
- Emissions test
- Likely to fail
- Parts involved
- Camshaft Position Sensor
Related codes
- P0367Camshaft Position Sensor B Circuit Low (Bank 1)
- P0392Camshaft Position Sensor B Circuit Low (Bank 2)
- P0344Camshaft Position Sensor A Circuit Intermittent (Bank 1 or Single Sensor)
- P0345Camshaft Position Sensor "A" Circuit (Bank 2)
- P0346Camshaft Position Sensor "A" Circuit Range/Performance (Bank 2)
- P0348Camshaft Position Sensor A Circuit High (Bank 2)
- P0349Camshaft Position Sensor A Circuit Intermittent (Bank 2)
- P034ACrankshaft Position Sensor - Crankshaft Start Position Incorrect
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.