pulsing.....

umm its odd.....the idle isnt sparatic or anything unusual in that manor, but when i'm going down the road and let off the throttle (coasting) the car will jutter then go back to normal and then jutter some more than go back to normal and conmtinue (no rythem) anything that can be contributing to this?

Might be your throttle body sticking a little. Clean it out.

how do i clean the throttle body? its been sitting for a while so maybe it is sticking but would that make it jutter though i thaught that could make it just increase then let off not like its doing...

Well either way it cant hurt. You take off your upper intercooler pipe to get access to it. Lube up the butterfly and clean out all the carbon deposits. Basically just make sure it moves smoothly.
 
Well i guess the other thing that could be causing it is your BOV. What BOV are you running?

1996 Mitsubishi Eclipse Spyder GS
 
where can i find that intercooler piping? :-P ;-) jk jk

Damn i forgot...
 
Then my only guess is the throttle body

wd-40 my best friend?

Indeed. Good ole gasoline will work too

Does the GS have a iacv ( sensor ) like the GS-T does.  I remember my old gs-t i had a few years back use to do the same thing and it was my IACV.  I'm not sure if the GS's have this sensor so hopefully one of the guys will chime in.

whats IAVC?

carb cleaner works wonders on a TB

alright thanks guys i'm going to do that....try to....it didnt do it this morning...so i dunno whats goin on....