cutting extra wires. bad idle now.. great.

[SpyderGSX07]

i have a 97 eclipse spyder. converted to manual. converted to 2.4l turbo. converted to awd. i have a 96 automatic wiring harness. 96 head. 97 block. 95 transmision and rear end. now, i wanted to clean up the engine bay even more what i have and ended up snipping something that is important. after cutting about 5 clusters of wiring that weren't plugged into anything. i have a rough idle. it sounds like a miss. and it is heavy on a gassy smell. now what the hell did i cut that isn't used on the eclipse 2g wiring harness that could give me problems!