OBD-II code · Powertrain (generic)
P0243 Turbocharger/Supercharger Wastegate Actuator A
Generic fault on wastegate actuator A. Boost control tracks commanded vs. actual manifold pressure; persistent deviation means wastegate, vanes, hose or actuator are not delivering the requested pressure.
Is it safe to drive with P0243?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyActuator 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
- 1–6 h
- Emissions test
- Likely to fail
- After the fix
- A drive cycle is needed before the light stays off
- Parts involved
- Wastegate Actuator A, Actuator Wiring
Related codes
- P0240Turbocharger/Supercharger Boost Sensor B Circuit Range/Performance
- P0241Turbocharger/Supercharger Boost Sensor B Circuit Low
- P0242Turbocharger/Supercharger Boost Sensor B Circuit High
- P0244Turbocharger/Supercharger Wastegate Actuator A Range/Performance
- P0245Turbocharger/Supercharger Wastegate Solenoid "A" Low
- P0246Turbocharger/Supercharger Wastegate Solenoid "A" High
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.