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  1. #1
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    2.5 260 runs then dies out

    I have a 260 efi horn motor. Fires up runs then dies Crank it and it fires right back up. If I put it in gear it dies instantly I just ran it a few weeks ago and noticed when idling in gear it seemed to be loading up by when I would take off it cleared up and ran great. Today I couldn’t even get it to run in gear. Batteries are new and fully charged, fuel pump and filter are brand new as well. Could it be the ACU ?
    Last edited by aljero; 07-14-2020 at 06:19 PM.

  2. #2
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    Put a fuel pressure gauge on it to verify it's maintaining proper fuel pressure.
    "One of the penalties for refusing to participate in politics is that you end up being governed by your inferiors". Plato .

  3. #3
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    Quote Originally Posted by flabum1017 View Post
    Put a fuel pressure gauge on it to verify it's maintaining proper fuel pressure.
    Check your vac port
    that runs from your air horn to your ECU.some times the vac port is clogged and the ECU is not getting the map signal....runs rich

  4. #4
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    Ed I need your email address again so i can send you those Classes and Rules we were talking about yesterday.. Ive lost it

    Quote Originally Posted by laser_ED View Post
    Check your vac port
    that runs from your air horn to your ECU.some times the vac port is clogged and the ECU is not getting the map signal....runs rich
    Bud Conner "Heathen" "Defending Our Constitution"

    FOR ALL ENGINE APPLICATIONS
    DRY Film Lubricant for Piston Skirts & Cranks + Thermal Barrier Ceramic Coatings for Piston Tops, Combustion Chambers, Valves etc !!



  5. #5
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    I just cleaned the map sensor fitting in the air horn and checked the map sensor itself, It’s definitely not a fuel pressure related issue it just cuts out. I tested the stator as well and that’s all good. I have a bad feeling it’s the ecu. I’m going to send it out to Brucato to have them test it

  6. #6
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    Update. Sent my ecu to Brucato and the fuel pump driver is bad. So I ordered a new Brucato ACU ��

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