Camshaft Position Sensor "A" Circuit Range/Performance (Bank 1)
The CMP signal is present but its phase relative to the crankshaft is outside tolerance. On engines with variable valve timing, this code often appears together with VVT solenoid faults.
Affected components
- Camshaft position sensor
- Vvt solenoid
- Timing chain
Common causes
- Medium likelihood: VVT solenoid stuck or oil-starved
- High likelihood: Timing chain stretched
- Low likelihood: Sensor drifting
Possible symptoms
- Check engine light on
- Power loss especially in mid-rpm range
- Possible rough idle or stalling
- Increased fuel consumption
Diagnostic notes
- The malfunction indicator lamp may illuminate
- This code can affect emissions
- A drive cycle may be required after repair
Related codes
Sources
Diagnostic information is provided for reference only. Confirm the code with a compatible scan tool and follow the vehicle manufacturer's service procedures before replacing components.