my oil pressure gauge was not working so I put in a new sending unit and it has not fixed the problem. with the key on I can take the lead off the sending unit and ground it out and with the key on the gauge rises slowly. Once i put the wire back on the sending unit it actually moves in the opposite direction. What is wrong? Ths car is a 1983 Subaru GL
Edited by dholte, 25 March 2013 - 05:11 PM.