Nissan Micra car keeps stalling

Have had this problem nearly 3 years, after about 120 - 150 miles the engine light comes on,( the one on the dash shaped like an engine), after a further 120 -150 miles the car starts stalling, for some reason mainly on decellaration, had all new sensors twice, new air mass unit 3 times, new fuel pump, so many adjustments I have lost count.It starts to stall so much that it becomes undriveable and dangerous, goes back into the Nissan dealer and on their Nissan computor, they cannot find a fault, but it comes back and the light is out and so the cycle starts again, can anyone help because Nissan can't?