Hey sorry i searched the forums but could not seem to find anyone with my same problem. i recently just installed a full cold air intake system that i bought from ebay, i know its not the best and the filter doesnt have the highest flow but i figured the piping and sleves seemed pretty solid, i also figured i could always buy a K&N filter later to replace the one i was given. the problem is that when i installed the new cold air intake i drove around for about 30 mins so the car could get use to the new mod but after i romped on it for a little while i got home and the car began to have a rough idle, everytime i start up the car it has slow bounces from 500 rpm to 1000 at idle, my car is a 1996 V6 3.8l engine with no other mods as of right now, what could be the problem later today im going to run a scan tool on it to see if its running any codes but as of right now i dont like how the engine is running irregular. here is the CAI system i bought

http://cgi.ebay.com/ebaymotors/ws/eB...3AIT&viewitem=

 

Not that I would think it would affect it much, but is the IAT sensor installed back? There should be no reason a cold air would make your car run rough.

 

yes the sensor is installed, i just got the car scaned, it read code P0441 Evaap emisson control system purge flow fault, any ideas?

 

Check the fuse for that, can be the cause half the time. Did you hurt the MAF sensor any? I don't know much about the V6's but figured I'd try to help you out?

 

http://www.obd-codes.com/p0441

This may help a little. You didn't disconnect anything else while swapping out the intake, did you?

 

Hey!! yeah everything was plugged in correctly, nothing missing. so i did decide to start unpluging things to see if anything would happen, and as soon as i unplugged the mass air flow sensor the engine immediately started to run smooth, huh? i drove with it for 15 mins and noticed when i got to stop lights and such that the car was driving smooth no hard idle. i'm wondering if i should replace the mass air flow sensor or just leave it unplugged, could it hurt the car in any way if i decide to leave it unplugged??

 

Get some MAF cleaner spray and see if that helps first.

 

well i did what everyone said and nothing seemed to work so i took out the cold air intake and threw in the stock, everything went back to normal, no rough idle or anything, bummer i was really feelin the deep throaty sound the car made, and i could tell that the throttle seemed a little more responsive wtf i dont understand how my car is the only car that has this problem, what a piece of sh**