1996 ford windstar stalls

i went to aamco and had the throttle/pedal position sensor replaced on the van according to the CEL code. it ran ok for about two weeks, now the van just dies after driving it for two or three hours. afer it stalls it starts right up again. the CEL doesn’t go on and it doesn’t shudder or shake or sputter. the engine just shuts off. can someone out ther help?

have the ignition control module checked