What is the cause of p029900 engine insufficient boost?

[AshleyDella]

p029900 engine turbocharger insufficient boost should check whether the turbocharger bypass valve and linkage mechanism are stuck, and whether the intake duct is blocked. Relevant information is as follows: 1. Turbo engine: The turbocharger is in a state of insufficient boost. Replacing the turbocharger can solve the problem. To prevent over-boosting of the turbo/supercharger, when the pressure reaches the set maximum value, the air pressure will push the wastegate actuator (pneumatic mechanical type) to bypass part of the exhaust gas around the turbine, thereby reducing the turbine speed and lowering the boost level. If the wastegate, wastegate regulating valve, boost bypass valve, boost pressure sensor, etc. fail, it may cause insufficient system boost. 2. Clear fault codes: After troubleshooting the car, the fault codes need to be cleared. When clearing fault codes, strictly follow the fault code clearing method specified for the specific vehicle model.