I am trying to find a computer chip for my 1992 Z28 5.7l. Aujp16151348. I went to hot shot my sons car and after that the motor runs at super high RPMS and sucks air a lot. I replaced the AIC and bought a new Computer but still runs high then cuts off after awhile. I think I need a new AUJP16151348 CHIP. Anyone had this problem??

Doubt it’s the memcal, vacuum leak or suck iac. Have you checked the iac for command.
iac noid or jumper aldl to command in and unplug and start engine?

Maybe the Throttle blades are stuck a little open?