so i have more or less got everything figured out, and got the truck to idle the way i want. except for one thing. when the a/c kicks on and off. the idle drops to about 300, then kicks back up to the commanded idle. this is only in park, it does fine in drive, which confuses me.
i have tried the a/c tables, a/c ramp in, ramp out, torque management, a/c pressures/torque. no matter what i do, it still does it.
6.2
6l80e
224/232 on a 113 vvt cam.
halps?!!?