Dan, Are you grounding the minus connection to the engine and the minus on the gauges to a different place? I had weird readings until I ran a ground wire from the sensors to the gauges. Then life was wonderful.
The voltages involved are minuscule. If you are using the engine-to-panel ground, you will have all sorts of voltage drops from other components getting involved. Jim Vance va...@claflinwildcats.com ----- Original Message ----- From: "Dan Heath" <da...@alltel.net> To: <kr...@mylist.net> Sent: Saturday, June 18, 2005 7:35 PM Subject: KR> Working hard and getting nowhere > 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 > _______________________________________ > Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp > to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net > please see other KRnet info at http://www.krnet.org/info.html >
