okay hows this for crossing out most of the abouve theories???
my car did it with a std ecu, a mines chipped ecu and now does it with my full aftermarket microtech (which doesnt use afm so cross that out too i say)..... so i really think that it has something to do with cas or tps (though microtech hardly uses the tps when its tuned off vac) ... i think the problem is elsewhere.... since changing to the microtech ive also added gtr injectors and a malipassi and it has also done it with the last 3 turbo setups ive used (std,TD06 and gt2835r).... so i think we should look deeper cause i have even played with the cold tune extensively and it hasnt fixed it... ill be trying another cas also soon so when i do ill tell the results