i have a 94 sol si and whenever i start up the car it always idles rough...it goes up and down from 1000 to 2000 rpms then back down quickly...it's nothing major..just annoys the hell outta me...after a few minutes it dies back out and returns to normal...let me know if you have any solutions to my problems...thanks in advance..

 

Have you checked your Idle Air Control valve?

 

yup..checked the iac valve..it's clean

 

this may sound stupid, but did you check your coolant level?

if it isnt that, it may be your TPS.

 

bleh replace your iac, its fried, set your timing, and adjust your throttle cable, or is there a screw to adjust the air like on a dsm? there was a lil screw you could mess with, that and adjusting my cable tigher fixed my problem

 

Sounds like a vacuum leak. I have the same on mine, I just know what it is and i haven't gotten around to fixing it yet. I'd check all of your lines, it's the cheap and easy way to possibly fix it.

 

If it's not IACV, it's usually vac leak, I agree..

 

Mine was like that... it was a vacuum leak.

 

take off your intake and you will see 2 holes inside. when it does it, put your finger over each hole one at a time. don't let it suck your finger in. but if it's the top hole that stops it then it's the aic or whatever it's called on the back. If it's the bottom hole check your fluid level and make sure the automatic choke thingy is screwed in all the way. it's the thing on the bottom of your throttle body where coolant goes in. You can bypass it too.