Turbocharger/Supercharger Underboost Condition
Verified1 source
1 source
- Official data (NHTSA)official_feed
What P0299 means
Caution — monitor closely
Boost pressure is below the calibrated minimum for current operating conditions.
Driveability assessment not yet available. Get a personalized AI Second Opinion for your exact car.
General information, not a diagnosis or repair instruction. Always confirm with a qualified mechanic for your specific vehicle.
Common causes
- Turbocharger/Supercharger Underboost Condition
What to check first
- Pressure-test the charge pipes and intercooler
- Inspect diverter/blow-off valve
Cost data coming soonUpload your estimate to check if the price is fair