my jeep does the same thing albeit not with loss of power etc or coming to a stop. mine will begin to see the engine rpm gauge drop for a bit, then it may jump back up to where it had been. sometimes the engine regains starting and will continue to drive...other times i turn the key off and restart it...all while rolling down the highway lol...i've just added some seafoam additive to the crankcase oil and gasoline to see if this rectifies the problem. The guy at autozone thinks it may be the tps and i should possibly clean the throttle body...and/or turn the idle up a bit as well...since i've replaced the computer back in november i am assuming this would not be it. i was thinking it is ethanol that is causing the problem and mentioned that i had filled my gas tank up with chevron back in november and my car went haywire after that...apparently some cars do not get along well with techron that is added to chevron gas...oh well...the saga continues...