Powertrain
generic / SAE
P226C
Turbocharger Boost Control A Slow Response
Turbocharger boost control A reaches the commanded boost pressure too slowly. Common with worn VGT vanes, sticking wastegate, or boost-control solenoid lag.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / number2 / 6C
Possible causes
- VGT vanes stiff or worn high
Symptoms
- Charge status indicator shows fault
- Charging may not start or interrupts
- Slower-than-expected charge rate
Inspection / repair
- Difficulty: hard
- DIY: shop recommended
- Estimated cost: 200–3000 €
- Estimated time: 1.5–8 h
- Component: turbocharger
- Component: boost control solenoid
- MIL / check engine light
- emissions-relevant
Sources
References
sae:J2012