spluttering 996 can anyone help my 996 bp runs fine untill i get to 6000 rpm to7500rpm aprox ,in third gear and above can be very aggresive at times .useing 54mm silmoto 1/2 system and sil race chip .. fitted a power commander 3 and dyno and still same .had it on dyno again last week and no matter which map was used the splutter was still there at 6000rpm .ive disconected the pc3 till i can find the fault any suggestions please |