hey all, first post on the 4g motor yay! i was taking it home last night and noticed a few things.

1. the cars boost gauge works, but after 0 it stutters, like its missing? it gets to about 9-10 or so at most and thats all. when i was driving behind it, and it had alittle black smoke coming out under acceleration.

2. it misses while at idle, and between 2000-3000rpm. any other time its fine. i dont mean miss like a little put, the car jerks like crazy so i downshift to get past 3000rpm then its fine.

im thinking either its spark plugs/wires/coil/turbo? the car is a 91 unmodified, has 111,500 miles, the compressor side of the turbo looks like there is alittle oil on it, its 500 miles past oil change, and i got this for 300 dollars.

any help would be sweet. peace