Camshaft position sensor signal is out of range or loses sync with the crank signal.
SYMPTOMS
- Check-engine light
- Hard start
- Stalling
- Rough running
LIKELY CAUSES
- Failing cam sensor
- Wiring fault
- Reluctor damage
- Cam timing fault
DIAGNOSIS STEPS
- Scope cam vs crank correlation
- Inspect sensor and reluctor
- Check wiring
RELATED PARTS
- Camshaft position sensor