Citi golf 1.3 SA - change over clocks to Uk one - a problem

After i change the KM clocks to MPH clocks the oil light is constantlly on! is this a common thing when doing this and is it a wiring problem, maybe i have to add an earth or something?

Thanks for any help

I disconnected the oil lead on top of the oil filter housing and arapped it in eletrical tape, this turned the light off on the clocks, so this morning driving to work the oil light was flickering all the time and it seemed to flicker in time when i was pressing the accelerator?

Any idea on this?

Thanks

Can anyone please tell me where the water temp light (the one behind the temp gauge)goes in the engine? On my 16V it went to the low water level indicator on the header tank, but this citi gold does not have that?

Many thanks

Seems like have fixed this, well disconnected the high pressure oil light and taped this up properlly (before it was loose and arcking)

Another quick question, i noticed that some of the HT leads were resting against the engine block, would this cause problems? as you still get current on the outside of these!

Thanks