P0299
Turbocharger/Supercharger Underboost Condition
Turbocharging / Boost control Guide under reviewThe module compares actual charge pressure to the boost it has commanded from the turbocharger's wastegate or variable-vane actuator. When actual boost stays meaningfully under target, the engine usually drops into a reduced-power (limp) mode and this code sets.
Detailed diagnostic instructions are under review. The code remains available for identification and assistance.
A DTC does not prove one component has failed. Confirm the diagnosis and vehicle fitment before buying.
Parts commonly related to this fault
Fault → component → vehicle / VIN → exact part.
Possible related component
Turbocharger / Turbo Assembly
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Boost / Charge Air Hose
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Boost Pressure Sensor
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Turbo Actuator / Control Valve
Explore parts →Related products / exact references
Catalogue references linked to this fault. Vehicle fitment still requires verification.
Exact product references have not yet been linked to this fault.
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