need some help..

[riceburner89]

Ok its really wierd what happnd. i have a b16a SIR 2 in my 95 coupe..

i SOMETIMES get a idle that goes from 1k to like 1,200

sometimes it only last for a couple revs.. and sometimes it will keep going..

**THIS DOES NOT HAPPEN ALL THE TIME!**


and it only happnds when i come to a stop...

any ideas wat u guys think this can be?

 

[rainer1386]

does it do it when your a/c is off? cuz mine does that when i stop and the a/c is running but stops revving when i turn it off.

 

[riceburner89]

dont have a/c

 

[CivicCrush]

check your iac valve or fast idle

 

[INJEN78]

check your iac valve or fast idle

that or its a possible vacuum leak

 

[INJEN78]

Vacuum leaks rev the engine high and keep it there.

not all the time...i knew i kid that had a vaccuum leak in his integra and it revved from 1k to 3-4k and back down..and it just kept doing it

 

[norcalgsr]

Definitely not a vacuum leak.. I would check out the IACV and bleed your cooling system as well to make sure there's no air trapped in the system.