2000 S80 T6. Over the past month the car has stalled 50-60 times. The fuel pump was replaced first, followed by the throttle body being cleaned, both unsuccessful fixes. Most of the time the car runs, idles fine. It seems to stall mostly when the foot is off the accelerator to make a turn, or when in traffic, and the accelerator is depressed and then let off to move forward in traffic. The rpm jumps up to maybe 2000rpm, drops to below 500rpm and then to zero. Occassionally the engine will "recover" and the rpm will jump up. Normal rpm is around 700 rpm. There is no check engine light on. Also seems to stall when engine is cold or maybe a bit more when warm.