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ORIGINAL: 02caravanman
Have you tested your MAP sensor? It may be that when you slow down you loss vacuum and the MAP shuts down. Although you'd think a check engine light would come on idk. Any other problems? loss of fuel mileage or surging shifting funny? lots of possibilities but I'd check the MAP first
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MAP sensor is fine. If it were bad, the engine would sputter or run rough as teh timing and mixture were altered. What I'm experiencing is an absolute and instantaneous 'off' condition. No codes, no sputter, no hesitation, runs fine right up until it quits and then runs fine immediately after restart. There does not seem to be any correllation between failures other than it has never failed during accelleration (but this may not be a meaningful categorization).
I have a friend with a 98 voyager that shares many of the same parts. If I had a short-list of possibilities, I could do a little swapping and see when the problem migrates to his van.