[Tcoat]

Originally Posted by Sarlacc

Mine twitches a little sometimes when the AC kicks in at idle. The idle RPM fluctuates a little, too.
I seem to remember old threads about it; consensus was that it's normal, I think?

However, my old Legacy (with a similar Subaru flat 4 in it) got it worse.
It flashed dash lights and even stalled when the AC kicked in at idle.
The dealer fixed it by tickling the throttle body and resetting the ECU.

Mine as well but he said "comes back up to 700" so just how far is it dropping? It will be interesting to see if the problem goes away when he flashes back to stock