Powertrain
generic / SAE
P2BFC
Exhaust Flow Control Valve B Position Circuit
The exhaust flow control valve B reports a position circuit condition. Exhaust routing for back-pressure or noise control cannot be commanded reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberB / FC
Possible causes
- Position sensor failed high
- Wiring or connector fault medium
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–5 h
- Component: exhaust flow control valve b
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012