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 having trouble reading the speed of the turbocharger or supercharger. It's like when a speedometer in a car is broken and can't tell you how fast you're going.
The P2579 code is triggered when the Engine Control Module (ECM) detects a problem with the speed sensor circuit for the turbocharger or supercharger. This sensor helps the engine control system monitor the speed of the turbocharger or supercharger to ensure it is operating correctly.
The turbocharger/supercharger speed sensor measures the rotational speed of the turbocharger or supercharger. The ECM uses this data to optimize engine performance and efficiency. If the sensor's readings are outside the expected range or not performing as expected, the ECM will set the P2579 code.
• Check Engine Light illuminated
• Reduced engine performance
• Poor fuel economy
• Faulty turbocharger/supercharger speed sensor
• Wiring issues such as damaged wires or poor connections
• Faulty ECM or software issues
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 turbocharger/supercharger speed sensor and its wiring for damage.
• Test the sensor's output with a multimeter to ensure it is within specifications.
• Replace the turbocharger/supercharger speed sensor if faulty.
• Repair or replace damaged wiring or 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 all electrical connections are clean and secure.
• Use quality replacement parts when servicing the turbocharger system.
Sensor Issue
• If the Check Engine Light is on, have the vehicle inspected as soon as possible.
• Avoid heavy acceleration until the issue is resolved.
• Consult a professional mechanic for accurate diagnosis and repair.
Check with your vehicle manufacturer for warranty coverage on turbocharger components.
This code has been reported in vehicles with turbocharged engines, particularly in models with higher mileage or those that have not been regularly maintained.
Moderate – While the vehicle may still be drivable, it is important to address the issue to prevent further damage.
Driving with a malfunctioning turbocharger can lead to decreased performance and increased emissions, which may not comply with local regulations.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The turbocharger/supercharger speed sensor is typically located near the turbocharger or supercharger assembly, often mounted on the housing.
Q: Can I drive with a P2579 code?
A: It's possible to drive with this code, but it's not recommended as it can lead to reduced performance and potential engine damage.
Q: How can I prevent a P2579 code?
A: Regular maintenance and inspections of the turbocharger system can help prevent this code from occurring.
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