Quote:
Originally Posted by spdbrake
I assume you are using the the Smiths pressure sender and not the Autometer sender that came with your factory gauges?
https://www.petrolheadheaven.com.au/...ra-gauges.aspx
If so there should be only one wire going to the sender and its not a floating ground type so needs no strapping to ground. The NPT fitting should handle that (unless you have a lot of Teflon tape on it, actually you shouldn't use any).
I'd start by using a meter on the SMITHS sender and reading the OHMs from the spade connector to case. It should read one of the range specs for your particular sender. EX: 33 ohm engine off, 240 ohm full sweep. (Those are VDO numbers I'm throwing out)
Also disconnecting the the sender the gauge should peg at full sweep. |
I am using the sender nissonger sent me, it is a variohmEPT2100
https://www.variohm.com/contentfiles...sor_1907_O.pdf
It looks as if it puts out a voltage of 0.1-5v
the sender is ouputting 2VDC with 0
oil pressure. This is a concern because I am putting in a BRAND NEW MOTOR and the
oil pressure gauge MUST work...
what is driving me nuts is:
when I turn on the key it goes to 95PSI and stays there( it seems to gidder a little like it is sensing 95PSI of pressure) When I disconnect the sender it goes full sweep 100PSI, When I put an air compressor on it it jumps tp 100PSI and then back to 95PSI. Please note that the sender is NOT connected to the motor, but I did make sure the case is grounged to chassis ground. The gauge has 3 wires 1) ground 2) key hot) 3 sender output. why is it sitting at 95psi when key on? is this normal because there is no
oil ? no clue