When is it stalling? Cruise, acell, boost, idle, ect...If it does it all the time and it's predictable, do a datalog of the problem. That will help out. Also for now, dont use the A/F target bins, until you have the fueling dialed in almost perfectly. This goes for normal engine conditions, and boost.. One more thing to check out- while its running at idle, go into the realtime display and look at the throttle %value. It shoud NOT be fluctuating witout touching the gas pedal. If it is, it may be triggering accel enrichement, which could stall the engine. I get a bit of noise on my TPS signal, so you have to set the TPSdot v/s threshold high enough to ignore some of this "noise". I thik mine was in the 1.3 to 1.6 v/s range. Just go up in small increments until there is no more blips on the realtime %scale.

13.5 @108 MPH-2.2 60ft(stupid FWD!)
S16G @ 18 PSI/FMIC/Running on MegaSquirt II (Now with sequential
fuel injection)
My webpage: http://eclipsed4evr.home.comcast.net
-1998 Mitsubishi Eclipse RS-T- "Toy"
-1992 Plymouth Laser Turbo AWD(SOLD)
-2000 Honda CR-V(daily)