hi, hoping someone can help me and point me to the right direction. I have a 93 wrx, and whenever its the first start up of the day the revs struggle to go up for some seconds and then go up around the 1500 mark like it should. it stays between 0/1000 revs for about 4/5 seconds and works up.At times it feels like it wil stall but doesnt.Been going on for about a month now, and only happens first thing in the morning, and starts up fine throughout the day after ive used it.

 

common problem with scoobys zafar51, my MY99 used to do a similar thing from cold. Do a search on "cold starts" and have a read

 

thx for that mate,im going to search around and see if i can find anything, thought it might of come down to a sensor? do u think its possible, and what one can it be?