Camshaft Position Sensor A Circuit Range/Performance (Bank 1)
Common Symptoms
- Check Engine Light illuminated
- Hard starting or extended cranking
- Rough idle or engine stalling
- Poor acceleration or hesitation
- Engine may not start at all
- Reduced fuel economy
Most Likely Root Causes
- Faulty camshaft position sensor
- Timing chain or belt stretched or jumped teeth
- Damaged or corroded sensor wiring harness
- Failed crankshaft position sensor causing correlation issue
- Engine oil contamination on sensor causing erratic signal
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Component Location
Camshaft position sensor is typically mounted on the cylinder head near the camshaft gear or on the timing cover.
Manufacturer Notes
Many manufacturers require camshaft and crankshaft sensor correlation relearn procedures after sensor replacement or timing service.
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