I have a 87 chevy truck and the oil pressure gage pegs to the right when I turn on the key.Number 6 wire on the gage harness is hot when the switch is on and the other two post move the gage in either direction when grounded,this truck is somewhat cobbled since the cab was replaced with a 83 cab and the engine which runs fine is a 87 fuel injected 350.I would like to know the technology behind how this gage works,Thank you for any support you can give.
- posted
17 years ago