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need help diagnosing engine cutting out

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  • #16
    Plug shows a rich condition, which can also come from non-combustion events (no spark).
    Trees aren't kind to me...

    currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
    94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

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    • #17
      Engine runs fine until it gets warm or to operating temp then it cuts in and out bucking hard. I've replaced everything I thought could cause it and I'm lost now
      1991 stiva.

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      • #18
        Swap the VAF? Disconnect IAC when cold. Gotta go after the components that feedback to the ECU
        Trees aren't kind to me...

        currently: 2 88Ls (Scrappy and Jersey), 88LX, 90L(Pepe), 91L, 91GL (Skippy) 93 GL Sport (the Mighty Favakk), 94 (Bruce) & 95 Aspire SEs, 97 Aspire (The Joker),
        94 Justy 4WD, 87 Fiero GT, plus 2 parts cars. That's my fleet.

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        • #19
          How is your fuel pump set up?
          Tommy

          WannaBimmer Build in Progress:
          http://www.fordfestiva.com/forums/sh...-Festiva-Build

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