Quote:
Originally Posted by kevin.1
I test gauges/wiring in same fashion as Razorhorn's initial post. However, I short the sending wire to ground and check gauge, then short to battery(+) and check gauge. In one case, the gauge moves to max and in other case it moves to min.
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I wanted to provide my update. Oil pressure gauge would not move from 20psi. Remove plug at sender and ground it again with no results.
Jumped from the positive on the battery ton the sending unit plug and the gauge pegged. Removed the battery jumper and the gauge returned to zero. Then I plugged the sending unit back in and the gauge started working. Looks like the gauge was stuck and works perfectly now.
Hopefully this information helps others.