Hello!I got a problem.Every cold morning when i start up my sapphire it revs up over 2.5k rpm for more a half minute without my desire and then come to standar idle.
I remove idle air control valve and clean it twice and for one 2 months havent got any problem.But these cold days problem came back again!
Help anyone?

Btw i buy a new water temp sensor to see if it resolve the problem but i cant find where is located!

(sapphire cosworth 4x4 92')