I already installed the sending unit, ran the wires and everything the only thing is that when I turn the key the gauge goes all the way to 100psi, it's a short electric not mechanical any help pix or what ever will be a lot of help

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Not sure how much help can be. Pretty straight forward setups. Sounds like you've switched a wire. Double check your wiring and the triple check.

 

What kind of oil pressure gauge you installing? Did you ground oil sender?

 

You messed up the wiring

 

Yea I did and its an auto meter

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