HELP! Autometer Fuel Gauge reading backwards with stock sender

Guest

Ahhh... I just installed a set of auto guage carbon fiber guages, the same type PIM sells. Everything worked fine, except the fuel gauge. Now I know usually they are not calibrated correctly so you stick in more resistors to change the Ohmz so empty actually reads at the empty sign.

But the problem is, once I hook the gauge up with a full tank, it goes pass FULL, and max. out it's travel on the needle.

I have a feeling the guage is reading it backwards on the ohms.

But on the instructions, it says it works with Most ford vehicles as well. And it also shows it working with fuel senders that has a High ohm when full and low ohm when empty, AS WELL AS Low ohm when full and high ohm when empty.

Question is... How do I fix it without taking the engine out and changing the fuel sender? Is there some how a way to Reverse ohms?... help i'm very stuck... Any help is greatly appreicated!

Best Regards,
Larry

1/14/034:55 PM

Original Post

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