Yeah, I tried every one of those, couldn't get any of them to work, so I hooked the gauge direct to the sender and it reads the full range but backwards. Might just install the gauge upside down, at least it will read as empty on the left and full on the right side like a factory gauge. Thanks for all the input. What makes me mad is Chrysler made a sender that works, why can't aftermarket reverse engineer Mopar's sender and make one that reads correct? Guess the engineers back in the day were a lot smarted than this new crop of engineers.
per there diagram and instructions there is no reason it shouldn't work correctly. They even show the sending unit as working off resistance to ground. Providing your sending unit is properly grounded (worth a check) which you've likely already done.
One could try Running a separate jumper from the battery negative to both the gauge and sending unit. doesn't have to be more than 16 ga, (18 would probably work).
If that doesn't work try a jumper from the Positive post to the gauge.
There is also mention of a "Custom calibration routine" when the S/U resistance is unknown. not sure if you tried that or not.
Still reads backwards? You have a bad gauge or bridge PERIOD!!!!. This is not rocket science. They are BS'lng you
if so inclined one can even use 0-100 ohm rheostat in place of the sending unit.
bet it still reads backwards.
P's me off what our support systems have evolved into (worn out jock straps).
I'm going to assume that at least your not talking to a foreign country YET!!!
