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 has found a problem with the sensor that checks the temperature of the exhaust gases. It's like a thermometer for the car's exhaust, and it's not working right.
The EGR (Exhaust Gas Recirculation) temperature sensor measures the temperature of the exhaust gases being recirculated back into the engine. This code indicates that the sensor's readings are out of the expected range.
The P04CF code is triggered when the Engine Control Module (ECM) detects a problem with the EGR Temperature Sensor C circuit, indicating that the sensor's output is not within the expected range. This could be due to a faulty sensor, wiring issues, or other related problems.
• Check Engine Light illuminated
• Poor engine performance
• Increased emissions
• Faulty EGR temperature sensor
• Wiring issues or poor connection in the EGR sensor circuit
• Malfunctioning ECM
EGR: Exhaust Gas Recirculation
ECM: Engine Control Module
• Use an OBD-II scanner to confirm the code
• Inspect the EGR temperature sensor and its wiring
• Test the sensor's resistance and compare it to specifications
• Replace the EGR temperature sensor
• 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
• Dodge Ram
• Regular maintenance and inspection of the EGR system
• Ensure proper connections and wiring integrity
• Use quality replacement parts
Sensor Issue
• Address the issue promptly to avoid further engine problems
• Consult a professional mechanic if unsure about repairs
Check your vehicle's warranty for coverage on emissions-related components.
This code has been associated with issues in vehicles with EGR systems, particularly in models with higher mileage.
Moderate – It should be addressed soon to prevent potential engine performance issues.
Ignoring emissions-related codes can lead to failing emissions tests and potential fines.
• Engine at operating temperature
• Vehicle in closed-loop operation
The EGR temperature sensor is typically located near the EGR valve or in the exhaust manifold.
Q: Can I drive my car with a P04CF code?
A: While the car may still be drivable, it's best to fix the issue soon to avoid potential engine problems.
Q: How do I clear a P04CF code?
A: You can clear the code with an OBD-II scanner after fixing the underlying issue.
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