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 computer in your car thinks the pressure sensor in the second alternative fuel tank is reading too high. It's like a thermometer showing a temperature that's too hot.
The vehicle's onboard computer has detected a high voltage signal from the pressure sensor in the alternative fuel tank B, indicating a potential fault.
The P2A44 code is triggered when the Powertrain Control Module (PCM) receives a signal from the alternative fuel tank B pressure sensor that is higher than the expected range. This could indicate a problem with the sensor itself, the wiring, or the PCM.
• Check engine light is on
• Possible fuel odor
• Decreased fuel efficiency
• Faulty pressure sensor
• Wiring issues such as shorts or open circuits
• Faulty PCM
PCM: Powertrain Control Module
OBD-II: On-Board Diagnostics, Second Generation
• Use an OBD-II scanner to confirm the code.
• Inspect the wiring and connectors for damage.
• Test the pressure sensor for proper operation.
• Replace the faulty pressure sensor.
• Repair or replace damaged wiring.
• Reprogram or replace the PCM if necessary.
• OBD-II scanner
• Multimeter
• Wrench set
$150 - $500
Moderate
• Toyota Prius
• Honda Civic Hybrid
• Chevrolet Volt
• Regular maintenance checks
• Ensure proper installation of sensors
• Inspect wiring periodically
Sensor Issue
• Do not ignore the check engine light.
• Seek professional diagnosis if unsure.
• Avoid DIY repairs unless experienced.
Check your vehicle's warranty for coverage on emissions-related components.
This code is relatively rare and typically associated with vehicles using alternative fuels.
Moderate – It should be addressed soon to avoid potential fuel system issues.
Driving with a fuel system issue can be hazardous and may not comply with emissions regulations.
• Vehicle at operating temperature
• Engine running
The pressure sensor is typically located on or near the alternative fuel tank B.
Q: Can I drive with a P2A44 code?
A: It's not recommended to drive for long periods with this code as it may lead to further issues.
Q: How do I reset the check engine light?
A: You can use an OBD-II scanner to reset the light, but ensure the issue is fixed first.
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