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idlafie · 03-22-2013, 03:22 AM

Fuel Sending Units on S14 are notoriously bad. They either don't work, OR give's false reading...will say EMPTY when 1/4 tank of gas still left.

Best bet is to find someone local to you so you can look at the wiring in their car to see what goes where. If I recall correctly, the locking cap on the gas tank is supposed to be a male plug where the sending unit inside the gas tank clips into. You should see another harness outside the gas tank that plugs into the OUTER portion of the locking cap. If everything is plugged up as it should be, then you should be getting a signal out of the gas tank from the fuel sending unit PROVIDED the sender unit works AND the gauge on the dash board isn't burnt out / broken.

I hate troubleshooting electrical problems....they are always a pain in the ass!!

Good luck!!

ID

03-22-2013, 03:22 AM	#11
idlafie Zilvia Addict Join Date: Mar 2004 Location: ..So Cal.... Posts: 940 Trader Rating: (0)	Fuel Sending Units on S14 are notoriously bad. They either don't work, OR give's false reading...will say EMPTY when 1/4 tank of gas still left. Best bet is to find someone local to you so you can look at the wiring in their car to see what goes where. If I recall correctly, the locking cap on the gas tank is supposed to be a male plug where the sending unit inside the gas tank clips into. You should see another harness outside the gas tank that plugs into the OUTER portion of the locking cap. If everything is plugged up as it should be, then you should be getting a signal out of the gas tank from the fuel sending unit PROVIDED the sender unit works AND the gauge on the dash board isn't burnt out / broken. I hate troubleshooting electrical problems....they are always a pain in the ass!! Good luck!! ID __________________ Weekend Mechanic for my Not-So-Mechanically-Inclined buddies....