Oil Pressure Light Confusion
Posted 11 February 2019 - 06:20 PM
I know the oil pressure switch earths through the engine block but this has confused the life out of me, as it is working backwards - can anyone with a better brain than me advise?
Posted 11 February 2019 - 06:30 PM
Iirc the metro turbo had an oil pressure switch that worked back to front as it used the oil switch to cut the fuel pump. Could be you have one of those fitted.
Edited by mini13, 11 February 2019 - 06:31 PM.
Posted 11 February 2019 - 06:36 PM
a link to the switch you bought would be good as well.
i would also be checking the wiring to the lamp.
Posted 11 February 2019 - 07:01 PM
As the other guys have said, while most switches are normally closed with no pressure, there are also some that are normally open on no pressure.
You can change the Switch or fit a relay.
Posted 12 February 2019 - 05:05 PM
Moss list Mini oil pressure switch as GPS133 ... but I wouldn't have thought that the GPS192 worked differently ... unless that one is for the non-A-series engines fitted to that range of cars ..
Posted 12 February 2019 - 09:46 PM
Ok what dash display do you have in the car? i am guessing a Metro one?
The switch I bought was as below;
Yes, MG Metro binnacle and I had initially thought that the ribbon had failed but all checked out fine after continuity testing.
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