My oil pressure gauge was working, suddenly its not... Its not a wiring issue, here is what it does...
My oil gauge got 4 wires (Trisco type)
Lights
+12V
Sensor
Ground
Now when I connect +12V and Ground the Oil Pressure goes up to 7bar -- Correct...
When you ground the Sensor wire is the gauge suppose to read 0 as far as I'm aware... Mine doesn't it jumps to 0 and hops around then goes to 7bar...
See I connected it up, worked fine and suddenly it just kept reading 7bar all the time, no matter what.
It just happened, worked fine, we fiddled with the oil cooler - it was leaking and then when I wanted to check the oil leak again I saw the gauge at 7 bar... hasn't come down... Disconnected it and all it does now is show 7 bar...
yup it fooked. the sending unit isn't working. it happens if the sender gets a live to it by accident or urs is just old. the unit gives resistance to the circuit which it isn't doing at the moment. tadaaaa
