Im in need of some help, i have loaded the file, its 5.3-4l80e. The 4l80e trans was seg swapped in , and not sure if that is where it went wrong or what. this is a buddys car and he had done by local tuner the tuner seams to have motor dialed in pretty good. but the trans shifts weird. like it keeps locking and unlocking. but the big issue is the idle not sure if related, but in every gear if the rpms go up they hang there for a good 5 to 10 seconds before dropping back down, and it comes down pretty slow when it does. Trying to figure out what is going on, looked at cable and throttle body itself, tried different tps and iac, really looking like its in tune somewhere, might not be looking in right spot. i know some people on here can probably open file and go right to it. if you can help me out would be greatly appreciated.
its 5.3 - 4l80e ( seg swap ) custom grind cam, fast intake, cable throttle , 411 ecm
let me know if you need any other info,
thanks