I am new to HPtuners and I'm having some trouble with a stock 5.3 swap I recently did. The donor truck a 2000 GMC ran fine. I pulled the motor and swapped it into a 93 Chevy truck I deleted the EGR AIR Pump And EVAP system. It fires right up and almost immediately dies. The VATS has been disabled. If I keep it running and slowly let of the accelerator it will idle but if I bring the RPM's up and let off it dies. I replaced the IAC it fired right up and idled high but then settled down to a normal idle. Turned it off and started it back up with the same start and die. Is there something in the tuning that I missed or do you think its a mechanical problem. Thanks for you help.