no oil pressure showing on guage

Ground should be one extreme of the gauge, open the other extreme, I would think.

Key On,  remove wire from sender spade and ground it, the needle should peg to the max. If not check 12v at the gauge and try grounding the designated sender spade on the gauge to see if that pegs the gauge.

Alan if it pegs the gauge I would assume its the sender connection or the sender, any idea if its a common sender with thread pitch and range of scale or is the hunt on ? thanks.

widebody boy posted:

Alan if it pegs the gauge I would assume its the sender connection or the sender, any idea if its a common sender with thread pitch and range of scale or is the hunt on ? thanks.

 

By grounding the wire off the sender and if it works then it's the sender, if grounding the actual sender spade on the rear of the gauge and it works then it's  the wire. Photo of gauge and sender would help to ID it.