Stock 6litre L98 E38 maffless tune.
Idle stock 550rpm LTFT turned on and average -2 in all cells under 60kpa.
Tune set to open loop at +60kpa and power enrich set to 12.5 to 12.
Tune works well except when I turn on air conditioning at idle.
When air is switched on the RPM dips, goes into a stall recovery and stalls.
What do i do to fix this problem?