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1988 f350 460 only runs at full throttle

Discussion in 'Trucks and Trailers' started by barefeetny, Mar 9, 2008.

  1. barefeetny

    barefeetny LawnSite Senior Member
    Messages: 533

    So this 460 i picked up is an early Fuel injected model....

    it will start and run, but only if i hold it to the boards... lots of black smoke like its loading up...

    i figure some fresh gas... new plugs and wires..i would do this regardless.. thinking its a bad map sensor.....but i wonder if anyone else has a clue on these early FIs...

    if its not deisel or a carb... i'm usually just throwing parts at it....
  2. barefeetny

    barefeetny LawnSite Senior Member
    Messages: 533

    no biggie i'm stealing a buddys code reader tonight.... My guess is o2 sensor or that stupid map sensor..... i'll let you all know

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