Looking for a bit of help here.....Car is a 06 GTO M6 with LongTubes Hi Flow Cats, Catback, Ported FAST 90 and a 226/234 .600/.600 112+3 cam..............ive got the car idling great at 900rpm and it drives around great except for two issues...........first issue is i cant seem to get it to fire up on its own.....ive got to hold the accelerator for the first 2-3 seconds at like 2000rpm then if i let it go its perfectly fine could be 40* out or 80* and the car could be ice cold or hot it doesn't matter.......if i start it without helping it runs fine for a second then surges and stalls.......second issue is a pesky buck from 1300-1600 it only occours at very light throttle (.18g/cyl area)........yet the car will put along at 1100 rpm just fine so i know its a tune issue..........i had the buck gone before but i had to richen the VE table in the 1600-2400rpm area and after i did this the car bucks.........ive tuned quite a few LS1's with much more agressive cams than this and not had these issues....the E40 PCM is apparently quite different and more complex than the old LS1 computers so any help here would be great.......i seem to be pretty close i think......i have attached my current tune file to this post.......as well as a short data log from driving in traffic where you can see the buck
Thanks!!!!!
Mike