Easy one-page printout for the garage or repair shop
This summary uses the existing diagnostic information shown in full below.
The car's computer is saying that the sensor which checks how open or closed a part called the wastegate is, is getting too much power. It's like a light bulb that's too bright because it's getting too much electricity.
This code indicates that the electrical circuit for the wastegate position sensor is receiving a higher voltage than expected.
The wastegate position sensor monitors the position of the wastegate, which controls the flow of exhaust gases to the turbocharger. A 'circuit high' condition means the sensor is receiving a voltage signal that is higher than the specified range, indicating a possible short or other electrical issue.
• Check Engine Light is on
• Reduced engine performance
• Poor fuel economy
• Faulty wastegate position sensor
• Wiring issues such as shorts or open circuits
• Faulty turbocharger/supercharger wastegate actuator
Wastegate: A valve that controls the flow of exhaust gases to the turbocharger.
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 confirm the code.
• Inspect the wiring and connectors related to the wastegate position sensor.
• Test the wastegate position sensor for proper operation.
• Replace the wastegate position sensor if faulty.
• Repair or replace any damaged wiring or connectors.
• Replace the wastegate actuator 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.
• Use quality fuel to prevent deposits.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Avoid heavy acceleration until the issue is resolved.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with turbocharged engines and is more common in vehicles with higher mileage.
Moderate – It should be addressed to prevent further engine performance issues.
Ignoring this code may lead to decreased vehicle performance and increased emissions.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The wastegate position sensor is typically located near the turbocharger or supercharger on the engine.
Q: Can I drive with a P127E code?
A: While you may be able to drive, it's not recommended as it can lead to reduced performance and increased emissions.
Q: How can I reset the Check Engine Light?
A: You can reset the light with an OBD-II scanner after fixing the issue, but if the problem persists, the light will come back on.
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