OBD-II code · Powertrain (generic)
P0366 Camshaft Position Sensor B Circuit Range/Performance (Bank 1)
Cam sensor B on bank 1 reads in range but plausibility check fails — slow response, drift, or signal does not match expected cam profile.
Is it safe to drive with P0366?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelySensor drift
- Less likelySensor element aged beyond calibration window
- Less likelySensor mounting loose - signal damping
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
- P0365Camshaft Position Sensor B Circuit (Bank 1)
- P0391Camshaft Position Sensor B Circuit Range/Performance (Bank 2)
- P0363Misfire Detected - Fueling Disabled
- P0364DC/AC Converter Control Module Control Circuit Range/Performance
- P0367Camshaft Position Sensor B Circuit Low (Bank 1)
- P0368Camshaft Position Sensor B Circuit High (Bank 1)
- P0369Camshaft Position Sensor B Circuit Intermittent (Bank 1)
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.