Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
This code means that the car's computer is getting a weak signal from the sensor that checks how much boost the turbo or supercharger is making. It's like trying to listen to a quiet radio station.
The P0237 code is triggered when the Engine Control Module (ECM) detects a low voltage signal from the boost pressure sensor, indicating that the sensor is not functioning within its normal range.
The Turbocharger/Supercharger Boost Sensor A measures the pressure of the air being forced into the engine by the turbocharger or supercharger. If the sensor sends a signal that is too low, it suggests that the sensor might be malfunctioning or there is an issue with the wiring or connections.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty boost pressure sensor
• Wiring issues such as shorts or open circuits
• Faulty ECM
Turbocharger: A device that increases an engine's efficiency and power output by forcing extra air into the combustion chamber.
Supercharger: A device that increases the pressure or density of air supplied to an internal combustion engine.
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connections to the boost pressure sensor.
• Test the boost pressure sensor with a multimeter.
• Replace the boost pressure sensor if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-150
• Chevrolet Silverado
• Volkswagen Jetta
• Regularly inspect and maintain turbocharger components.
• Ensure all electrical connections are secure.
• Use high-quality fuel to prevent buildup.
Sensor Issue
• Avoid heavy acceleration until the issue is fixed.
• Have the vehicle inspected by a professional mechanic.
Check with your vehicle manufacturer for specific warranty coverage on sensors.
This code has been associated with vehicles experiencing poor turbocharger performance due to sensor failures.
Moderate – It should be addressed soon to prevent further engine performance issues.
Driving with a malfunctioning boost sensor can lead to reduced engine performance and increased emissions.
• Engine running
• Turbocharger engaged
The boost pressure sensor is typically located on or near the intake manifold or the turbocharger itself.
Q: Can I drive with a P0237 code?
A: While you can drive with this code, it is not recommended as it may lead to reduced performance and efficiency.
Q: How do I know if my boost sensor is bad?
A: Symptoms of a bad boost sensor include a check engine light, poor acceleration, and decreased fuel economy.
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