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 detected that the sensor measuring the temperature of the fuel vaporizer is showing a higher temperature than expected. It's like a thermometer showing a higher temperature than it should, and the car's computer is worried something might be wrong.
The P2A5D code indicates that the signal from the temperature sensor at the outlet of the alternative fuel vaporizer is reading higher than the expected range.
The Alternative Fuel Vaporizer C Outlet Temperature Sensor is responsible for monitoring the temperature of the vaporized fuel as it exits the vaporizer. A 'Circuit High' condition means the sensor is reporting a higher voltage than normal, which could be due to a faulty sensor, wiring issues, or a malfunctioning vaporizer.
• Check Engine Light is on
• Possible decrease in fuel efficiency
• Engine may run rough
• Increased emissions
• Faulty temperature sensor
• Wiring issues such as shorts or open circuits
• Malfunctioning vaporizer
• Corroded or loose electrical connections
Vaporizer: A device that converts liquid fuel into vapor.
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 wiring and connectors for the temperature sensor.
• Test the temperature sensor for correct operation.
• Check the vaporizer for proper functionality.
• Replace the faulty temperature sensor.
• Repair or replace damaged wiring or connectors.
• Service or replace the vaporizer if necessary.
• Clear the code and test drive to ensure the issue is resolved.
• OBD-II scanner
• Multimeter
• Basic hand tools
$150 - $400
Moderate
• Toyota Prius
• Honda Civic Hybrid
• Chevrolet Volt
• Regularly inspect and maintain the fuel vaporizer system.
• Ensure electrical connections are clean and secure.
• Use high-quality fuel to prevent deposits.
Sensor Issue
• Do not ignore the Check Engine Light; have the vehicle inspected.
• Regular maintenance can prevent sensor issues.
• Consider consulting a professional mechanic for diagnosis.
Sensor issues may be covered under the vehicle's emissions warranty. Check with your manufacturer.
This code is relatively uncommon and is typically associated with vehicles using alternative fuels.
Moderate – It may not cause immediate damage, but should be addressed to ensure proper vehicle performance.
Driving with a malfunctioning vaporizer sensor could lead to increased emissions, potentially violating emissions regulations.
• Engine at operating temperature
• Vehicle in a safe, stationary position
The temperature sensor is located near the outlet of the alternative fuel vaporizer, typically in the engine bay.
Q: Can I drive with a P2A5D code?
A: It's possible to drive short distances, but it's recommended to address the issue to avoid potential engine performance problems.
Q: How can I prevent this code from appearing?
A: Regular maintenance and inspections of the fuel vaporizer system can help prevent issues with the temperature sensor.
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