I have been fighting this problem for over three weeks now, so I am throwing it out to you Netters just in case someone knows how to debug this thing. We have an Oil Pressure (OP) and an Oil Temp (OT) gauge. The gauges have three lugs, sender, ground, and +12V. The OT sender is a brass lug that screws into the oil sump and the OP sender is one of those almost bell shaped cans. They both have lugs on the end of them where the sender wires are attached. From the lug to ground, they both measure a little resistance I am getting no reading on either of the gauges.
Today, I took out the oil sender and put it in boiling water and the resistance measuring from sender lug to ground, moved toward zero. I heated it a little more with the torch and it went farther toward zero. This tells me that the OT sender is sending a signal. How can I test the OP sender and how can I test the gauges? I have taken voltage readings at the gauges and they read +12 between the sender and +12 and strangely between +12 and +12. See you in Mt. Vernon - 2005 - KR Gathering See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC