Powertrain
generic / SAE
P2C9C
Cold Start Turbocharger/Supercharger Wastegate Actuator B Range/Performance
During cold start, the wastegate actuator B response does not match the cold-start calibration. Cold viscosity, ice formation, or actuator force degraded at low temperature.
SystemPowertrain
Typegeneric / SAE
GroupP2
Range / numberC / 9C
Possible causes
- Actuator response sluggish at cold high
- Wastegate linkage iced medium
- Sensor element aged beyond calibration window low
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: wastegate actuator b
- Component: ecm
- MIL / check engine light
- emissions-relevant
- drive cycle required
- limp mode possible
Sources
References
sae:J2012