Question regarding the current state of A/C; have any additional maps pertaining to corrections on fueling/ignition/anything engine related when switching A/C been found in the past years?
Ever since I switched to M4.4 (Piet's AC mod) from my M4.3 car, my engine will show weird idling behavior as long as the A/C is on. More precisely, with A/C on, as long as I'm still rolling, but with the clutch depressed, the engine will drop down to 2000RPM exactly and idle there. Only after i've come to a complete stop, the RPM's will drop to normal ~900rpm idle after a second or so. Or i'd have to force the RPM down with with shifting to a higher gear, if I force it to 1000 RPM it will stay there.
So when driving with A/C towards a traffic light, or in erratic slow traffic where I clutch&roll a lot, I'll be idling at an annoying 2000RPM most of the time.
The one A/C correction table I have right now doesn't seem to do much, zeroing it out gives no change, and it seems like something is actively controlling the idler to target 2000rpm. Sound familiar to anyone?