i was wondering if it could be my EGR valve. i mean it only idles when its warm up and its throwing a 12 on the cel. could that be it?

its a 93 si.
d16z6
stock

 

Im not sure if it would cause a cel but i know it will cause a idle problem. Check your pcv valve.

 

the lil plastic thing that sticks to the manifold right near the ports?

 

uhm?

 

iac valve? i have a similar problem

 

Yes, that's the PCV valve.

 

What is it that it idles low until it warms up??? If so I'm having the same problem, I dont have my pcv conected, can this be the problem??? Im going to try to connect it and if it works I'll let you know. BTW I have a B16A2

 

Yes, code 12 for a fault in the EGR system can cause a rough idle. Definitely fix that code.

Also clean the FITV on the throttle body.

 

how do i clean it? and wats the FITV

 

FITV is Fast Idle Thermo Valve. You remove it, open it up, and clean it with Carborator Cleaner. It can also be adjusted but that's if you have a hunting idle (reving up then down then up again and so on).

 

man im ajuss take out all my valves and clean em lol

 

how do i take out the iac valve? i mean do i gotta take off the manifold or...

 

how do i fix it though?

 

IAC is a code 14, do you have both codes? you can try to clean the EGR, but would probably be better to replace it

 

im havin a rough idle. but 12 bein thrown up.

 

idk

 

so how can i clean the egr?

 

 

wooooooooooooooooooooooooooooooooooooooooooooooooo oooooooooooooooow! thanx lol seems like a days work haha

 

good info bro