02z28_559cencal

Have a 2002 camaro z28 with 99k miles, car has msd wires, jba ceramic coated shortys, k&n FIPK and im running the 91 tune off a diablo i2030, just cleaned the throttle body and that fixed some of the idle issue, but i was thinking it may be the diablo tuner, does anyone have any experience with the tuner that can point me in the right direction?? or could this be a fuel delivery issue...it shuts off while cruising on freeway around 80mph and also will shutoff coming to a stop after some aggressive driving, the rpms will just Die and then i feather the pedal and the car kicks back on its really WEIRD

SouthernRex

Is there anyway you can check your fuel pressure while driving? I would clean the MAF, too. My biggest concern is your tune, though, since it wasn't at a professional dyno tune.

02z28_559cencal

Yeah that itune lets me datalog and see the parameters, what should my fuel pressure be? And it was just a preselected canned 91 diablo tune