Engine and gearbox (P)
P0017: Crankshaft-Camshaft Correlation Issue
This code indicates a mismatch between the crankshaft and camshaft positions on bank 1, sensor B. It affects engine timing and can lead to poor engine performance or failure to start.
Checked by a licensed car technician · last reviewed 29 September 2026
Symptoms
- Rough idling
- Poor acceleration
- Check engine light on
- Engine misfires
Common causes
- Stretched timing chain
- Faulty camshaft phaser
- Worn timing chain tensioner
- Misaligned timing components
How to check it yourself
- Inspect timing chain for wear
- Check camshaft phaser operation
- Examine timing chain tensioner
- Verify timing alignment
Can I keep driving?
The car should not be driven if the engine is running rough or misfiring.
General guidance, not a professional inspection. Confirm faults with measurements before buying parts, and use a qualified mechanic for brakes, steering, fuel leaks, airbags, and other safety-critical work. Terms and disclaimer