OBD-II code · Powertrain (generic, extended)
P2D30 Cold Start Turbocharger/Supercharger A Overboost
During cold start, turbocharger/supercharger A produces boost pressure above the cold-start target. Wastegate sticking closed or boost control overshoot.
Is it safe to drive with P2D30?
The car may go into limp mode (reduced power). Get it diagnosed before a long trip.
Common causes
- Most likelyWastegate sticking closed at cold
- PossibleBoost control overshoot at cold
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
- Turbocharger A, Wastegate A
Related codes
- P2D2DCold Start Intake Manifold Runner Performance Bank 1
- P2D2ECold Start Intake Manifold Runner Performance Bank 2
- P2D2FCold Start Turbocharger/Supercharger A Underboost
- P2D31Intake Manifold Tuning Valve Exceeded Learning Limit Bank 1
- P2D32Intake Manifold Tuning Valve Control Circuit Driver Current/Temperature Too High Bank 1
- P2D33Hybrid/EV Battery Inductive Charger Control Module Processor Performance
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.