DT466E Rebuilt. Ran, then no start.

Discussion in 'International Forum' started by Jonny Masters, Jan 6, 2026.

  1. Inderjit

    Inderjit Heavy Load Member

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    What are the fault codes? what are you using to scan it?
     
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  3. Jonny Masters

    Jonny Masters Bobtail Member

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    Jan 6, 2026
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    By fault codes do you mean
    SPN: 164, FMI: 4
    SID: 6, FMI: 5
    SID: 5, FMI: 5
    SID: 4, FMI: 5
    SID: 155, FMI: 7.
    I have a basic scanner. Zurich ZRHD1.
    I am trying to find someone local with a more advanced scanner than will read it without having to tow it into a shop.
     
  4. Inderjit

    Inderjit Heavy Load Member

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    The scanning software I use lists DTC followed by a 3 digit mumber. You need the DTC to look up the fault in the navistar manual.
     
  5. Jonny Masters

    Jonny Masters Bobtail Member

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    Jan 6, 2026
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    I think I understand. By going to the last section and looking at SID and the FMI I believe the injector DTC is 421-426 and the IDM DTC is 543*. Does that look right?
     
  6. Big Road Skateboard

    Big Road Skateboard Road Train Member

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    Are you sure you didn't miss a ground off the starter, in the battery box, or on the block/head?
     
  7. Jonny Masters

    Jonny Masters Bobtail Member

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    Jan 6, 2026
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    I absolutely NOT certain! Lol. Everything was so covered in oil during dissembly that my pictures I took along the way are almost worthless.
     
  8. Jonny Masters

    Jonny Masters Bobtail Member

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    I have verified the grounds in the battery box, and the ground from the starter to the frame. But I am not aware of a ground on the head or from the block.
     
  9. Inderjit

    Inderjit Heavy Load Member

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    That looks correct.

    There should be a ground cable from the starter negative to the frame and the engine block.
     
  10. Jonny Masters

    Jonny Masters Bobtail Member

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    Jan 6, 2026
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    This morning I cleared all the codes, and ran a ground from the starter to the block. It performed the same. Started and ran for 15-20 seconds and then skipped like three cylinders went out, and then died. The injection pressure and injector codes came back. But not the IDM code.
     
  11. Inderjit

    Inderjit Heavy Load Member

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    Were the Injection Pressure Regulator and Injection Pressure Sensor replaced?
     
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