vaccum lines

[1SlowCA18DET]

in need of help car idles fine, when i drive it if feels like its misfiring, and once i hit boost it falls on it's face, i have the four vaccum line on the back of intake manifold all t ed togeather to small hose off of throttle body, medium size on bov, and large to cold pipe. have butterfly t ed off from wastegate and small one of the butterfly silonide(sp) to hose off of the head???o yea im getting code 21 and 34 i know what they are just telling you what is all happening

[sdtouge]

if its doing really poor,y under boost check your intercooler piping.

[8ggalant]

also is your knock sensor wired up....when mine came disconnected, my car would pull timing HARDCORE when boost hit...IT SUCKED

edit...i see u posted codes...look in the links @ the top of the forum and download the fsm...the trouble codes are in teh ef&ec section ( i cant remember what those are off top of my head)

[iliketocrash]

they are 21 ignition signal missing in primary coil and 34 det sensor