P0017: Crankshaft Position — Camshaft Position Correlation (Bank 1 Sensor B)
Do not keep driving
Stop driving and have the vehicle recovered. Mechanical timing faults get worse, and on an interference engine the failure mode is expensive.
What this code means
A correlation failure measured against the B camshaft sensor on bank 1 — normally the exhaust cam. Where P0016 and P0017 appear together on the same bank, the shared element is the chain rather than either phaser, which narrows the diagnosis considerably before the covers come off.
Likely causes
Start here
- Stretched timing chain · specialist
- Worn timing chain tensioner or guide · specialist
- Worn camshaft phaser · specialist
Less common
- Timing chain or belt out of alignment · specialist
- Faulty camshaft position sensor · moderate
- Low or dirty engine oil · easy
Symptoms
Components involved
Information, not instruction
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Community experience
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