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 controlling a part that switches between different fuel tanks.
The vehicle's computer monitors the performance of the alternative fuel tank select valve. If it detects a problem with how this valve is working, it triggers the P2A92 code.
The P2A92 code is set when the Engine Control Module (ECM) detects that the Alternative Fuel Tank Select Valve A is not performing as expected. This valve is responsible for switching between different fuel sources or tanks, and any performance issues can lead to improper fuel delivery.
• Check Engine Light is on
• Reduced engine performance
• Possible fuel smell
• Faulty alternative fuel tank select valve
• Wiring issues or poor electrical connections
• Faulty ECM
ECM: Engine Control Module
OBD-II: On-Board Diagnostics, second generation
• Scan the vehicle for additional codes.
• Inspect the wiring and connections to the select valve.
• Test the operation of the select valve.
• Repair or replace faulty wiring or connectors.
• Replace the alternative fuel tank select valve.
• Reprogram or replace the ECM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Toyota Prius
• Chevrolet Volt
• Nissan Leaf
• Regularly inspect and maintain fuel system components.
• Ensure proper electrical connections.
• Use recommended fuel types.
Control System Performance
• Do not ignore the Check Engine Light.
• Have the vehicle inspected by a professional if unsure.
• Keep up with regular maintenance.
Check with your vehicle manufacturer as some fuel system components may be covered under warranty.
This code is relatively uncommon and often associated with vehicles using alternative fuels.
Moderate – It is important to address this issue to ensure proper vehicle performance and fuel efficiency.
Driving with a malfunctioning fuel system can lead to safety hazards. Ensure repairs are conducted by qualified personnel.
• Vehicle at operating temperature
• Engine running
The alternative fuel tank select valve is typically located near the fuel tank or along the fuel line.
Q: Can I drive with the P2A92 code?
A: It's possible, but not recommended. This issue can affect fuel efficiency and engine performance.
Q: How do I clear the P2A92 code?
A: After repairs, use an OBD-II scanner to clear the code. If the issue persists, further diagnosis is needed.
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