I'm working on a 2004 5.3 + 4l60e with electronic throttle swapped into an old gmc pickup. When I shift into gear or turn the ac on the idle drops way down. When this happens timing goes right to 30 deg. and the e throttle closes a bit. The same thing happens while driving and the vehicle comes to a stop. It seems like the throttle should stay put or open a little instead. I can't figure out what tables control this. Any help I get would be appreciated.nbs idle issue_0001 AC and purge.ctznbs idle issue 2.efi