Iv found a fitting guide but it doesnt help me! Lol basically an autosport gauge, sender on sandwich plate, the gauge lights up but needle doesnt move, theres 2 loose wires in the engine bay, white and brown, if i put the brown to a earth the needle goes to the opposite end of the gauge and stays there, and if i then put the white to the little screw on the sender the needle goes to 0 and stays there?? Question is ......WTF am i doing wrong? I presume white is + and brown - ? Very simple explaination required please before i take it out and throw it towards the sun haha

 

Sounds a daft thing to say but when its showing zero is the car running because you wont get oil pressure if it isn`t

 

Sounds like a faulty sensor.

 

beat me to it

 

Ha yeah maybe should of added car is running, just to throw into the mix, at 1st the needle used to go with the reva, just like a rev counter? But i swapped the wires around on the back of the gauge and it stopped doin that, these were fitted when i bought the car btw, the boost wirks spot on

 

I was thinking( hoping) this, does it need earth or + to the sender?

 

Can you not get hold of an instruction guide ? This would give you the necessary info, google?

 

Tried all that, gave up now anyway just bought a whole new set with a pipe to run from under the alternator, and it sweeps lol

 

What have you got now?

Regarding your first one, most senders require a signal path and a return path. The return path CAN be through the engine and the outside of the sender.

So I'd presume that your sender would need BOTH wires, one to the screw, one to an earth nearby? Or the second to the OUTside of the sender?

 

What happens if you put brown to the sensor terminal?