P0394Camshaft Position Sensor B Circuit Intermittent (Bank 2)
Camshaft position sensor B signal jumps or drops out intermittently on bank 2 (or on engines with a single cam sensor).
Can I keep driving? With caution
You can drive to the shop, but do not postpone the repair. The problem may worsen and damage other components.
Sistema Afectado
Sistema de Encendido · Bujías, bobinas y cilindros
El problema afecta la combustión en uno o más cilindros: bujías, bobinas o inyectores.
Espacio para vendedores de repuestos
Aún no hay un anunciante en este espacio.
Symptoms You Will Notice
What you may observe when this code appears
- Check engine light on Power loss especially in mid-rpm range Possible rough idle or stalling Increased fuel consumption
Possible Causes
The components or conditions that trigger this code
- 1Intermittent connector Connector with intermittent contact under vibration Harness routed against vibrating component
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 0.5-2.5 hours. Estimated cost: €60-€
- 2DIY possible
Note: This information is for general reference. For precise diagnostics and safety repairs, always consult a certified mechanic.
Estimated Cost
Approximate range in USD (varies by region and shop)
Spark plugs + coils
* Diagnosis only: $50–$150
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