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 how much diesel fuel is in the tank because the sensor isn't working right.
The P2AAE code indicates that the Diesel Fuel Presence Sensor is reporting a low voltage reading, which suggests an issue with the sensor circuit.
The Diesel Fuel Presence Sensor measures the amount of diesel fuel in the tank and sends this information to the engine control module (ECM). A 'circuit low' condition means the sensor is sending a lower than expected voltage signal to the ECM, which could be due to a malfunction in the sensor, wiring issues, or a problem with the ECM itself.
• Check Engine Light is on
• Inaccurate fuel level readings
• Possible engine performance issues
• Faulty diesel fuel presence sensor
• Damaged wiring or connectors
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics II
• Perform a visual inspection of the wiring and connectors.
• Use a multimeter to check the voltage at the sensor.
• Test the sensor and ECM for proper operation.
• Repair or replace damaged wiring or connectors.
• Replace the diesel fuel presence sensor.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Ford F-250
• Chevrolet Silverado 2500
• Dodge Ram 2500
• Regularly inspect and maintain fuel system components.
• Ensure connectors are secure and free of corrosion.
• Use quality fuel to prevent sensor contamination.
Sensor Issue
• Have the vehicle inspected by a professional if the Check Engine Light is on.
• Avoid ignoring the issue as it can lead to inaccurate fuel readings.
• Keep a record of any repairs related to the fuel system.
Check with the vehicle manufacturer for warranty coverage on emissions-related components.
This code has been associated with diesel vehicles since the implementation of more advanced fuel monitoring systems.
Moderate – While it may not cause immediate issues, it should be addressed to avoid potential fuel system problems.
Driving with a faulty fuel sensor can lead to unexpected vehicle behavior and should be addressed to ensure safety.
• Vehicle should be on a level surface.
• Ensure the fuel tank is not empty.
The diesel fuel presence sensor is typically located in or near the fuel tank.
Q: Can I drive with a P2AAE code?
A: It's possible to drive with this code, but it's recommended to get it fixed to ensure accurate fuel readings.
Q: Will this code affect fuel economy?
A: It could potentially affect fuel economy if the engine control module makes incorrect adjustments based on faulty sensor data.
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