OBD-II code · Powertrain (generic)
P0018 Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A)
Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor A): the value does not correlate with the related sensor or expected pattern. This relates to engine timing; a fault can cause rough running, a no-start, or timing errors.
Is it safe to drive with P0018?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyTiming chain stretched (bank 2)
- PossibleBank 2 cam phaser failed
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
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 3–12 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Timing Chain, Camshaft Position Sensor, Crankshaft Position Sensor
Related codes
- P0016Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor A)
- P0017Crankshaft Position - Camshaft Position Correlation (Bank 1 Sensor B)
- P0019Crankshaft Position - Camshaft Position Correlation (Bank 2 Sensor B)
- P0015"B" Camshaft Position - Timing Over-Retarded (Bank 1)
- P001AA Camshaft Profile Actuator A Control Circuit/Open Bank 1
- P001BA Camshaft Profile Actuator A Control Circuit Low Bank 1
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.