OBD-II code · Powertrain (generic)
P03E8 A Camshaft Position Actuator Position Sensor C Circuit High (Bank 1)
A Camshaft Position Actuator Position Sensor C Circuit High (Bank 1): the signal voltage is above the expected range. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.
Is it safe to drive with P03E8?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyOpen signal line
- Less likelyConnector pins corroded - high contact resistance
- Less likelySupply wire pinched against B+ source
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
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Camshaft Position Actuator
Related codes
- P03E5A Camshaft Position Actuator Position Sensor C Circuit (Bank 1)
- P03F9B Camshaft Position Actuator Position Sensor C Circuit High (Bank 1)
- P03E6A Camshaft Position Actuator Position Sensor C Range/Performance (Bank 1)
- P03E7A Camshaft Position Actuator Position Sensor C Circuit Low (Bank 1)
- P03E9A Camshaft Profile Actuator Position Sensor A Exceeded Learning Limit
- P03EAA Camshaft Profile Actuator Position Sensor B Exceeded Learning Limit
- P03EBA Camshaft Profile Actuator Position Sensor C Exceeded Learning Limit
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.