P0299 OBD-II: Turbocharger/Supercharger "A" Underboost Condition
P0299 Severity
Will P0299 go away on its own?
Once the vehicle's onboard system no longer detects the issue, most codes will disappear on their own. If your vehicle still has this code, however, it should be properly diagnosed to avoid a more serious problem.
For a proper diagnosis, RepairPal Certified shops have the equipment, tools, and expertise.
Moderate severity codes might not threaten the vehicle's safety or functionality immediately, but you should still get it diagnosed within a reasonable time frame to keep your car running well.
What causes OBD-II fault code P0299?
The engine control module (PCM) uses sensors to determine if the Turbocharger/Supercharger is providing the requested amount of boost. If the PCM determines that the requested amount of boost is not being provided, the PCM will set code P0299.
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What Does P0299 Code Mean?
OBD-II Code P0299 is defined as a Turbocharger/Supercharger "A" Underboost Condition
The engine control module (PCM) uses sensors to determine if the Turbocharger/Supercharger is providing the requested amount of boost. If the PCM determines that the requested amount of boost is not being provided, the PCM will set code P0299.
P0299 Symptoms
- Decreased engine performance
- Increased fuel consumption
- Lack of boost from the turbo/supercharger
Common Problems That Trigger the P0299 Code
- Brake booster pressure sensor failure
- Exhaust leak
- Manifold Absolute Pressure (MAP) sensor failure
- Powertrain Control Module (PCM) failure
- Turbo/supercharger control solenoid failure
- Turbo/supercharger failure
- Wiring issue
Ask our experts about P0299.
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