Oil Pressure Gauge Fault?

[78firebirdgjk4580]

So the oil gauge worked fine before removing the cluster, as I've had the dash upholstered.

I put the custer in on reassembly, and the oil pressure gauge worked fine.

I had to remove it again as the temperature gauge has a fault.

I cleaned the ground on the temp gauge, and the temp gauge worked fine again, but my oil pressure gauge read wrong.

When I turned on the ignition, the needle went as far anticlockwise as possible.

I've pulled the wire from the oil sender unit, but there is no difference.

I tried to ground the gauge to the chassis, but there is still no difference.

I'm assuming the gauge has electrically gone wrong, but I wondered if anyone else has had this issue.

Any help would be appreciated.

Thanks.

 

[Munkyslut]

The wire to the sender unit is a ground for the gauge.

So if you’ve unplugged it & it’s still reading max, there is a short to ground somewhere on its way back to the gauge.

 

[78firebirdgjk4580]

The wire to the sender unit is a ground for the gauge.

So if you've unplugged it & it's still reading max, there is a short to ground somewhere on its way back to the gauge.

Thank you, that's what i thought it must be.

I'll have to check through them again.