Powertrain
generic / SAE
P2BFE
Exhaust Flow Control Valve B Position Circuit Low
The exhaust flow control valve B reports a position circuit low condition. Exhaust routing for back-pressure or noise control cannot be commanded reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberB / FE
Possible causes
- Signal wire shorted to ground high
- Internal sensor short medium
- Connector pins corroded - high contact resistance low
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