Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This means there's a problem with a sensor that helps control the turbo in your car. The sensor isn't sending the right signals to the car's computer.
The wastegate position sensor monitors the position of the wastegate actuator, which controls the boost pressure of the turbocharger. A 'circuit low' error indicates that the sensor is sending a voltage signal that is lower than expected.
The P2ABB code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the wastegate position sensor B circuit. This sensor is responsible for providing feedback on the position of the wastegate actuator, which regulates the flow of exhaust gases to the turbocharger. A low signal could indicate an issue with the sensor itself, wiring problems, or a fault in the ECM.
• Reduced engine performance
• Check Engine Light illuminated
• Poor acceleration
• Faulty wastegate position sensor
• Damaged or corroded wiring/connectors
• Faulty Engine Control Module (ECM)
Wastegate: A valve that diverts exhaust gases away from the turbocharger turbine wheel.
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
• Use an OBD-II scanner to verify the code.
• Inspect the wastegate position sensor and its wiring for damage.
• Test the sensor voltage and resistance with a multimeter.
• Replace the wastegate position sensor if faulty.
• Repair or replace damaged wiring/connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $500
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regularly inspect and maintain turbocharger components.
• Ensure proper electrical connections.
• Keep the engine and its components clean.
Sensor Issue
• Do not ignore the Check Engine Light.
• Consult with a professional mechanic if unsure.
• Regular maintenance can prevent such issues.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with turbocharger issues in vehicles with advanced emission systems.
Moderate – It is recommended to address this issue soon to prevent further engine performance problems.
Driving with a malfunctioning turbocharger can lead to increased emissions and may not comply with legal standards.
• Engine running
• Turbocharger engaged
The wastegate position sensor is typically located near the turbocharger on the engine.
Q: What happens if I ignore this code?
A: Ignoring this code can lead to reduced engine performance and potential damage to the turbocharger.
Q: Can I drive with a P2ABB code?
A: While you may be able to drive, it is not recommended as it can lead to further issues and decreased performance.
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