Powertrain
generic / SAE
P2BBE
Turbocharger/Supercharger Bypass Valve A Position Exceeded Learning Limit
The turbocharger/supercharger bypass valve A reports a position exceeded learning limit condition. Boost recirculation cannot be commanded reliably.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberB / BE
Possible causes
- Mechanism worn at end-stops high
- Sensor reference drifted medium
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Inspection / repair
- Difficulty: medium
- DIY: shop recommended
- Estimated cost: 200–1200 €
- Estimated time: 1–5 h
- Component: turbo bypass valve a
- Component: wiring harness
- Component: ecm
- MIL / check engine light
- emissions-relevant
- limp mode possible
Sources
References
sae:J2012