Oil light buzzing

[Gilly]

Hi there, did an oil change and also changed dash loom for a new one but now the oil light is buzzing but only when revving, has anyone has had this problem?

[hayesey]

is the dash loom from the same age car as yours?  The wiring changed later on and there's only one oil pressure sensor on later ones. 

[Gilly]

dash loom is from a 1994 polo on a k reg, my polo is a 1991 on a h

[hayesey]

yes then the loom will be from one with a single pressure sensor.  You'll need to clocks to match really.  Or run your own wire from the 2nd sensor to the correct pin on the back of the clocks.

[Gilly]

excellent cheers for your help, ill run a wire from the second sensor to the clocks

[hayesey]

I think there's a pin-out diagram for the clocks connector in the electronics FAQ section somewhere which will tell you which pin to use. 

[Gilly]

got it, pin 24......cheers for putting that up, a great help

[Gilly]

hayesey, which switch do i run the wire from? ones a high pressure and one is low?

[hayesey]

not sure off the top of my head.  Have you got a haynes manual there?  See which sensor goes to which pin on the back of the clocks.  The wires from the sensors go directly into the clocks.

[RyanC]

My g40 dose that when u rev it up the light and buzzer gose on and stays on, loom is original :/

[ereeiz]

Checked the sensors to see if they're working? From memory one is for <2.5k RPM and the other for >2.5k RPM, although that may be mk2 golf.
Someone had that on here not long ago and turned out to be a dodgy set of clocks. Everything fails sometime!