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 getting a signal from a sensor that measures how much pressure is in the exhaust. This signal is too high, which might mean there's a problem with the sensor or the exhaust system.
The P2E57 code indicates that the signal from the exhaust pressure sensor 'C' is higher than expected, suggesting an issue with the sensor or the circuit.
The Exhaust Pressure Sensor C monitors the pressure in the exhaust system. A 'Circuit High' code means the sensor is sending a voltage signal that is higher than the manufacturer's specified range. This could be due to a faulty sensor, wiring issues, or an actual increase in exhaust pressure.
• Check Engine Light is on
• Reduced engine performance
• Increased fuel consumption
• Faulty exhaust pressure sensor
• Wiring issues (short to voltage)
• Exhaust system blockage
OBD-II: On-Board Diagnostics, a system for self-diagnosing vehicle issues.
Sensor: A device that detects or measures a physical property and records, indicates, or otherwise responds to it.
• Use an OBD-II scanner to confirm the code.
• Inspect the exhaust pressure sensor and its wiring for damage.
• Check for blockages in the exhaust system.
• Replace the exhaust pressure sensor if faulty.
• Repair or replace damaged wiring.
• Clear any blockages in the exhaust system.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Ford F-250
• Chevrolet Silverado
• Dodge Ram 2500
• Regularly inspect exhaust system components.
• Ensure sensors are clean and properly connected.
• Perform routine vehicle maintenance.
Sensor Issue
• Avoid driving long distances until the issue is fixed.
• Consult a professional mechanic for a thorough diagnosis.
Check your vehicle's warranty for coverage on emissions-related components.
This code is commonly associated with diesel engines that have complex exhaust systems.
Moderate – While not immediately critical, it should be addressed to prevent further engine performance issues.
Driving with a malfunctioning exhaust system can lead to increased emissions and may not comply with local regulations.
• Engine at operating temperature
• Vehicle stationary
The exhaust pressure sensor is typically located near the exhaust manifold or turbocharger.
Q: Can I drive with the P2E57 code?
A: It's not recommended to drive for long distances with this code as it can lead to further engine issues.
Q: How do I reset the Check Engine Light after fixing the issue?
A: Use an OBD-II scanner to clear the code after repairs are completed.
Budget · Bluetooth scanner
An app-based scanner with repair reports and enhanced system diagnostics on supported vehicles.
Helpful when live data and repair-report guidance can narrow down a drivability issue.
View on Amazon
Specialty · Fuel pressure tester
Helpful for no-start, lean, rich, injector, and fuel-delivery diagnosis.
Useful for checking whether fuel delivery is contributing to the fault.
View on Amazon
Specialty · Compression tester
Useful when misfire, mechanical condition, or low-cylinder-pressure problems are suspected.
Helpful when you need to rule out low compression or mechanical engine problems.
View on AmazonThese are optional diagnostic tools, not guaranteed fixes. As an Amazon Associate I earn from qualifying purchases.