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 thinks the sensor that checks the fuel tank's pressure and temperature is not working right because it got too hot.
The P11DD code is triggered when the fuel tank pressure/temperature sensor sends signals to the car's computer that are outside the expected range, indicating an overtemperature condition.
The fuel tank pressure/temperature sensor monitors the pressure and temperature inside the fuel tank. If the sensor detects temperatures that exceed the normal operating range, it may indicate a malfunction or an incorrect reading, leading to the P11DD code.
• Check Engine Light illuminated
• Poor fuel efficiency
• Difficulty starting the vehicle
• Faulty fuel tank pressure/temperature sensor
• Wiring issues or poor connection to the sensor
• Excessive heat in the fuel tank area
OBD-II: On-Board Diagnostics II, a standardized system for self-diagnostics and reporting in vehicles.
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 P11DD code.
• Inspect the wiring and connections to the fuel tank pressure/temperature sensor.
• Test the sensor for proper operation and replace if faulty.
• Replace the faulty fuel tank pressure/temperature sensor.
• Repair or replace damaged wiring or connectors.
• Ensure proper heat shielding in the fuel tank area.
• OBD-II scanner
• Multimeter
• Basic hand tools
$100 - $300
Moderate
• Chevrolet Silverado
• Ford F-150
• Toyota Camry
• Regularly inspect sensor connections.
• Avoid excessive heat exposure to the fuel tank area.
• Perform routine maintenance checks.
Sensor Issue
• Do not ignore the Check Engine Light.
• Get the vehicle inspected by a professional if unsure.
• Avoid driving with a full tank in extremely hot conditions.
Check with your vehicle manufacturer for warranty coverage on emission-related components.
This code has been associated with issues in vehicles with complex fuel management systems, often due to sensor failures or wiring problems.
Moderate – Should be addressed soon to prevent potential fuel system issues.
Driving with a faulty sensor may lead to increased emissions and potential safety hazards.
• Engine at normal operating temperature
• Vehicle parked on a level surface
The fuel tank pressure/temperature sensor is typically located on or near the fuel tank.
Q: Can I drive with a P11DD code?
A: While the vehicle may still drive, it's not recommended to ignore this code as it could lead to further issues.
Q: How can I reset the P11DD code?
A: You can use an OBD-II scanner to reset the code, but it's important to fix the underlying issue first.
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