Originally posted by DennyW
Mike, that Tan wire is the one he said he couldn't find. Where does that Tan wire hokk to from end to end? Oh, never mind. It goes from the dash gauge to the oil sender, and that acts as the resistor to ground to vary the voltage .
if he cant find that tan wire he needs to run a wire from the oil pressure switch on the motor to the tan wire in the plug at the back of the instrument panel. the ground will take care of it self. it will use the same ground thats it useing now. thats what id do before i spent a lot more time looking.