When refilling expansion bottle after changing radiator I accidently soaked the map sensor (3 bar on 3dr cos), now won't idle properly & runs like a dog below about 2500 & on light throttle,ok when driving on boost. Suspected map sensor so substituted for standard 2bar (only spare I had) & now it idles perfect & runs smooth again. Has anyone else had this problem, is it worth me trying to dry out 3bar or do you think I need a new one,if so does anyone know who's got any 3bars as I've heard these are hard to get hold of.

Cheers , Simon.

 

Dry it out thoroughly and it should be ok. They are pretty water resistant so its more likely the electrical connector you have drenched.