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Hi everyone, I’m new here and really need help.
My wife 2011 Versa has a fuel gauge failure. Suddenly the needle goes down to empty when we refuel the tank or when we are driving. It seems like an error or something. Video attached you can watch clearly. Sometimes I have to turn off the car in order to reset it properly but sometimes it won’t reset and continues the same way.
It order to work properly we have to wait until the car cool off. the car works great and don’t go off on us even with the error. Anyone had this problem before? any help will be appreciated and if it needs repairs I really need to know how expensive it is. Thanks everyone.
Video link here. https://youtu.be/pVoJyzbhIIo
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The FSM for the fuel gauge circuit can be starting on page 17 of this:
Man you really got to get a voltage reading on the fuel level sending unit signal wire (at the guage AND as close to the sending unit as possible). Then you’ll need to see if the voltage is changing on the signal wire in proportion to the needle on the gauge changing.
It almost appears like you have a intermittent lose of signal. This could be a faulty sending unit , a connector fitment issue, a short to GND, or a break in the wiring (sometimes a wire can break inside of the insulation without the insulation being damaged).
Again, you need to take a volt reading. Back probe at the gauge connector first. This will tell you if you have a signal glitch while the gauge it glitching. If the signal is glitching then measure at the sending unit (the wires for it are probably on the same connector as the fuel pump). This will tell you if the glitch is because of wiring or because it is coming directly from the sending unit. If there is no glitch on the signal wire then suspect the gauge.
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