Oil Gauge

[juddy]

I noticed my oil pressure gauge was not working, I had alook  behind and found a wire was damaged, and another wire not connected, so I traced back the wire that was not connected, and it went to the oil sensor on the engine, theres 2 prongs on it, is there a right or wrong one to connect it.

The strange thing is the power for the oil gauge, I would have thought would come from turning the ignition key, mines however wired up to a live switch connection on the black out switch. Thus if you were to turn the black out lights to on the oil gauge will receive a live feed, and just increase the level of the needle regardless of the engine running or not.

Whats going on

[m-coffey]

Juddy,

most oil pressure senders I've played with are single wire units, 2 prong "sender" i would assume is a pressure switch, to prove the point, measure on ohms from pin to pin, should be open circuit with the engine off, and 0ohms (short circuit) with the engine running.
If it is a sender there should be a difference in ohms between engine off and running.

Hope this helps

M

[juddy]

Not really, should it be connected to the live on the blackout switch?

[m-coffey]

should be wired to the same point of supply for the basic engine power, ie ignition coil

[juddy]

Yes that's what I thought, but its not and it looks like it was done like this as per the army.

So all I need to do is attach to ignition switch, will they be a spare spade?

The blackout switch looks vert strange must be 10 wires going to it.