OBD-II code · Powertrain (generic, extended)
P22D4 Turbocharger Turbine Inlet Valve Position Sensor Circuit
A general electrical fault on the turbine inlet valve position sensor — open, shorted, or out of plausibility.
Is it safe to drive with P22D4?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyPosition sensor failed
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
- Turbine Inlet Valve
Related codes
- P22D1Turbocharger Turbine Inlet Valve Control Circuit High
- P22D2Turbocharger Turbine Inlet Valve Stuck Open
- P22D3Turbocharger Turbine Inlet Valve Stuck Closed
- P22D5Turbocharger Turbine Inlet Valve Position Sensor Circuit Range/Performance
- P22D6Turbocharger Turbine Inlet Valve Position Sensor Circuit Low
- P22D7Turbocharger Turbine Inlet Valve Position Sensor Circuit High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.