OBD-II code · Powertrain (generic, extended)
P22CD Turbocharger Compressor Outlet Switching Valve Stuck Open
Compressor outlet switching valve mechanically stuck open — sequential boost cannot transition stages cleanly.
Is it safe to drive with P22CD?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyValve stuck open
- Less likelyCarbon or debris buildup preventing free movement
- Less likelyComponent wear with age - mechanical play
Symptoms
- Check engine light on
- Significant power loss / limp mode
- Possible blue or black smoke from exhaust
- Whistling or hissing sound from intake
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.7–3 h
- Emissions test
- Likely to fail
- Parts involved
- Boost Switching Valve
Related codes
- P22CATurbocharger Compressor Outlet Switching Valve Control Circuit/Open
- P22CBTurbocharger Compressor Outlet Switching Valve Control Circuit Low
- P22CCTurbocharger Compressor Outlet Switching Valve Control Circuit High
- P22CETurbocharger Compressor Outlet Switching Valve Stuck Closed
- P22CFTurbocharger Turbine Inlet Valve Control Circuit/Open
- P22D0Turbocharger Turbine Inlet Valve Control Circuit Low
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.