P2BF1Fuel Control System B Too Rich Bank 1
Fuel control system B on bank 1 reports a persistently rich condition. Long-term fuel trim is at the negative limit, indicating excess fuel delivery or air metering error.
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
Motor · Powertrain
La falla pertenece al grupo motopropulsor (motor y gestión electrónica).
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 Increased fuel consumption Black smoke from exhaust on acceleration Smell of unburned fuel
- fouled spark plugs
Possible Causes
The components or conditions that trigger this code
- 1Fuel rail pressure high or regulator stuck Injector leaking - over-fuelling
How to Fix It — Step by Step
Recommended diagnostic and repair procedure
- 1Difficulty: medium. Estimated time: 1-6 hours. Estimated cost: €150-€
- 2Professional repair recommended
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)
Varies by diagnosis
* Diagnosis only: $50–$150
Quick Info
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