P0391Peugeot 5008Years: 1996 - 2026
Camshaft Position Sensor B Circuit Range/Performance (Bank 1)
Reviewed by ASE Certified Technician
What does this mean?
Code P0391 indicates a problem with the camshaft position sensor B circuit on Bank 1 (range/performance).
Disclaimer: This diagnostic code is part of the standard OBD2 system and can apply to Peugeot 5008 models manufactured from 1996 to 2026. However, please note that the presence of this specific code depends on your vehicle's exact engine configuration, options, and production year.
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Common Causes
Faulty camshaft position sensor
Damaged, chafed, or broken wiring harness
Corroded or loose electrical connector
Stretched timing chain or worn timing belt
Symptoms to Watch For
- Check Engine Light is illuminated
- Engine cranks but won't start
- Engine stalling or dying unexpectedly
- Difficulty starting the engine
- Rough or unstable idle