Idle and under boost crappy, cruising fine??

[1993-Talon-TSI]

90 2wd turbo
240 000 km
Car idle is lumpy and rough, but nerver stalls, car runs great while cruising, but start boosting and the car feels like its missing badly (running on less cylinders). Car has had bad idle for long time, but it worked great in all other conditions. When you go to wot the car tries to fight thourgh the mising with boost, but still is massivly slow.
cleaned injectors, checked coil pack, switched wires, plugs. no boost leaks, great compression, proper timing.

Could the injectors or the power transistor cause these problems? spark plugs i took out looked good.

Any help or ideas would be greatly appriectated!!

 

[girlieracr4g63]

The way a plug looks is not always a good indication its (good). Might want to change them just for the sake of it.

 

[herm1357]

first change the plugs to see if you can single out a few possibilities, use ngk bpr7es you can get them at murrays. if that dont seem to work trying cleaning your combustion chamber with mopar combustion chamber cleaner. try both of them ideas