Clio Williams oil light/water temp light on?

[Frimley111R]

My CW3 wasn't used for a couple of months and now, after about 10 mins of driving it the following warning lights come on (oil can light and water temp light). The car runs fine but obviously once the lights come on I stop driving. Any ideas? (FYI fuel light is on too but I think I know why!)

[Le TVR]

Apparently a common problem.
Check the oil pressure sender and its wiring.

[Frimley111R]

Really? Ok thanks.