car dies after throttle.....

[yotabeater]

i just got done swapping turbos, and ever since then, it randomly dies at idle. when i'm driving and push the clutch in to coast, it dies. the rpms go right down and it isn't caught at the idle level. it doesn't do it every time, probably 60%. when does get caught at the idle level, the rpm's drop to about 500 for a second, then back up to 900. i unplugged the isc, and it made no difference. i worked on my car for 14 hours straight yesterday and i am at my wits end. any help is appreciated. btw, 91 tsi, evo 3 16g, afc, maft, fmic, yaddy yaddy.

 

[poppyseed]

double check your vacuum lines, sounds like one is not connected or may have gotten knocked off. Also similiar problems are from people hacking their MAF, did you do that to