I've been having a problem for about a month now, when I start my car up, it has the roughest idle I have ever experienced with a car. I let it sit for a while and the idle with jump up and down from 200 to 2500 rpm. Then when I try to start it almost stalls on me. This stall problem happens when I shift from 1st to 2nd and from 2nd to 3rd. Now the confusing problem is all of these problems disappear when the engine warms up. I check the MAF and the gaps on my sparks and they are fine. Any thoughts on what the problem might be. My mods are listed in my sig. Thanks

 

Take a look at your throttle body and see if it is dirty just past the butterfly. Don't know if that is your problem but it is worth a try.

 

i doubt its the TB, the problem started about a week after i install zzp's stage 2 kit

 

afternoon bump