Diagnostic Trouble Code
P0299 — Turbocharger/Supercharger Underboost Condition
Turbocharger/Supercharger Underboost Condition
Definition
The ECM has detected that the turbocharger or supercharger is not producing the expected amount of boost pressure. The actual boost is significantly below the target value commanded by the ECM.
Common Causes
- Boost leak in intercooler piping or charge pipe
- Failed or stuck wastegate actuator
- Worn turbocharger with excessive shaft play
- Clogged air filter restricting airflow
- Failed boost pressure sensor