Chevrolet P1431: Fuel Level Sensor 2 Signal Range/Performance

What Does The Chevrolet P1431 Code Mean?

Engine running, and the PCM detected that: With the secondary fuel tank not empty, more than 150 miles have been accumulated and the PCM did not detect that the fuel level in the right fuel tank moved by at least 0.80 gallons.

What Are The Potential Causes Of The Chevrolet P1431 Code?

• The fuel tanks over filled.
• Fuel level almost empty, then re-fueled with only a few gallons
• The Fuel Level sender became un-stuck during refueling
• The Fuel Level sender un-stuck on rough road or while turning
• Fuel level sender circuit is open or short

Recommended Parts

Below are some recommended auto parts to help you address the trouble code affecting your vehicle and get it running smoothly again:

>>> WORKPRO 582-piece Crimp Terminals, Wire Connectors, Heat Shrink Tube, Electrical Repair Kit
>>> Dorman 911-008 Fuel Level Sensor Compatible with Select Models , Black

Note: During the purchasing process, please check carefully whether the part you want to buy fits your car!

Reference Sources

GM, 2013, Service Bullettin – Prior To Any Circuit Testing.