OBD-II code · Powertrain (generic)
P052A Cold Start A Camshaft Position Timing Over-Advanced Bank 1
Cold Start A Camshaft Position Timing Over-Advanced Bank 1: the control module has detected this fault condition. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.
Is it safe to drive with P052A?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPhaser stuck in advanced position
- PossibleOil aerated or wrong viscosity
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
- 2–5 h
- Emissions test
- Likely to fail
- Parts involved
- Cam Phaser A B1, Oil Supply
Related codes
- P052CCold Start A Camshaft Position Timing Over-Advanced Bank 2
- P054ACold Start B Camshaft Position Timing Over-Advanced Bank 1
- P054CCold Start B Camshaft Position Timing Over-Advanced Bank 2
- P0527Fan Speed Sensor Circuit Range or Performance
- P0528Fan Speed Sensor Circuit No Signal
- P0529Fan Speed Sensor Circuit Intermittent
- P052BCold Start A Camshaft Position Timing Over-Retarded Bank 1
- P052DCold Start A Camshaft Position Timing Over-Retarded Bank 2
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.