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well the wonderful awesome mechanic roger at japtrix found my problem, cylinder #2 wasnt firing, b/c like some wire connector that connects to it came loose and he reconnected it and he says its running nice and hard, what i like to hear, on friday my Full titanium jic catback comes in, i was not excited but now i am b/c my car is running great and i have an exhaust that weighs like 8lbs lol, cant go wrong gonna be fast. thanx guys for all your help lets hope she runs good for a long while now.
Ditto and congrats on the resolution. There is a connector that goes to the coil pack that was probably loose. Not too big a deal when its fixed. Its not an uncommon mistake when someone changes the plugs. Glad everything worked out ok...have fun with your new found power and be safe. Get on a dyno if you can and get us some numbers!!
Could also be a vacuum leak somewhere in the tract.
+1 i had this issue briefly when i installed mine. the TB clamp wasn't in the right position on the intake tube and came off the throttle body after i hit boost for the first time. actually, it was before then. The idle was bad and the car shut off once i let the rpms drop too low. make sure the clamps sit in the grooves on the tubes. it also came off at the turbo charger to the tube that leads to the intercooler inlet. No problems since.