terry_thatcher
Terence Thatcher
I have a temp gauge and an idiot light for high temperature. I have become concerned after a mistaken wiring of my oil pressure idiot light (now fixed) that my temp warning light may be miswired. No way to check it really without over-heating the engine. It is a simple two wire lamp, one wire coming from one of the temp sensors on the engine. Where does the other wire go? To ground or to positive DC outlet? I would have to check, but I think, if I recall correctly, my oil pressure light goes to the sending gauge and to a positive DC terminal. When the oil pressure is low (e.g., before you start the engine), the sending unit provides a ground and the light illuminates. Any help gladly accepted.