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 pressure in the exhaust system. It's like when you try to read a thermometer, but the numbers don't make sense.
The P2E55 code is triggered when the Engine Control Module (ECM) detects a problem with the exhaust pressure sensor C circuit, indicating that the sensor's readings are out of the expected range.
The exhaust pressure sensor C monitors the pressure of the exhaust gases leaving the engine. This sensor helps the ECM manage engine performance and emissions. If the sensor's readings are not within the expected range, it can affect engine efficiency and emissions control.
• Check Engine Light is on
• Reduced engine performance
• Increased emissions
• Faulty exhaust pressure sensor C
• Wiring issues in the sensor circuit
• ECM malfunction
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Scan the vehicle for codes and freeze frame data.
• Inspect the wiring and connectors for damage or corrosion.
• Test the exhaust pressure sensor C for proper operation.
• Replace the exhaust pressure sensor C if faulty.
• Repair or replace damaged wiring or connectors.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $400
Moderate
• Ford F-150
• Chevrolet Silverado
• Dodge Ram
• Regular maintenance of the exhaust system.
• Ensure all sensors are clean and free from debris.
• Inspect wiring and connectors regularly.
Sensor Issue
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Regularly check and maintain the exhaust system.
Check with the vehicle manufacturer for specific warranty coverage related to emissions components.
This code has been associated with issues in vehicles with advanced emissions control systems, particularly in models from the mid-2000s onwards.
Moderate – It should be addressed soon to prevent potential damage to the emissions system.
Driving with a malfunctioning exhaust system can increase emissions and may not comply with local emissions regulations.
• Engine running
• Vehicle at operating temperature
The exhaust pressure sensor C is typically located near the exhaust manifold or along the exhaust pipe.
Q: Can I drive with a P2E55 code?
A: While the vehicle may still be drivable, it's best to address the issue to avoid increased emissions and potential engine performance problems.
Q: How do I clear a P2E55 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue is fixed, the code should not return.
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