Every once in a while when i come to a stop my 95Z idles real low around 450-500 and it feels like its gonna die. Once i start moving the car feels fine though. I believe it is something electrical because once in a while when it is stumbling then all of a sudden it will run perfectly normal. I'm thinking its the opti but im just looking for some more ideas. I replaced the plugs and wires but it didnt fix it at all. Another thing that is confuses me is the other day when i pulled in my driveway it started doing it so i let it run for a minute with the hood popped. After about 30 seconds or so i noticed something smoking coming from behind the intake manifold. I have never noticed this before so i dont know if it has anything to do with it or not but i havent seen it smoke since. Any ideas? thanks, Jeff

 

ur IAC (idle air control) might be sticking and the smoke might be oil leaking from ur intake seal.....im really tired so i cant be to specific right now but nobody else answerd u o i did

 

Thanks for the reply, Over the winter last year i had the intake off to powdercoat it and while it was off i cleaned up the whole TB including the IAC, and i reset the intake with the copper sealant stuff. I felt behind it and i didnt feel any oil or anything. I will take the IAC out again. Is there any way of testing it to see if it sticks or binds in a certain posistion?

 

http://shbox.com/1/4th_gen_tech1.html shoebox site...in the middle section tehres a place to test the IAC and to reset it ......im not ure if thats ur problem but i tried lol

 

Could it possibly be the EGR valve sticking? I was looking through some of the things on shoebox's website and noticed that if the EGR valve was bad it would cause a rough idle and surges when driving.. i get both. I guess i will check both of these out tomorrow. Thanks

 

EGR is a possibility....i didnt even think of it since i was soo tired when i posted....i hope u find ur problem......what year is ur car...most OBDll cars 96+ would give a code for bad EGR...but not all the time

 

its a 95 Z28 so i got OBDI.. I dont get any SES lights or anything for it, but i dont know what would throw a code on these cars anyways. If it ever stops raining up here i will try to go check a few things out... thanks again for the replies

 

yeah its been raining almost everyday over here to ,.....suxs not having a garage.....hope u find ur problem
bobby

 

Just as an update, it did turn out to be the EGR valve was sticking. I replaced it and it runs great now, no problems. Thanks for the help though -Jeff