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Thread: TD5 engine misfire after wading through water

  1. #1
    busa Guest

    TD5 engine misfire after wading through water

    Hi,

    My series 2 disco TD5 suffers from engine hesitation/misfire immediately after i wade through water ( deep or shallow). The misfire/hesitation only lasts for a few kilometers and all goes back to normal.
    Plugged in the Nanocom to see if any faults recorded, all clear so not sure what is happening, obviously there is some electrical issue with water.
    ECU has recently been out due to injector harness oil issue and re sealed, so I'm guessing there is another problem.
    Vehicle is fitted with snorkel and all joints well sealed.

    Any suggestions?

    regards
    Busa

  2. #2
    Join Date
    Jul 2014
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    Hi, let nanocom plugged in on instrument mode and watch the battery voltage when the symptom occurs
    Discovery Td5 (2000), manual, tuned

  3. #3
    schuy1 Guest
    Do as Sierrafery says. You have not said if it is auto, if so it may be related to the xyz switch.
    Cheers Scott

  4. #4
    busa Guest
    Hi,

    Yes it is auto, whats the xyz switch, and how does this cause the misfire?
    Thanks
    Busa

  5. #5
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
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    Quote Originally Posted by busa View Post
    Hi,

    Yes it is auto, whats the xyz switch, and how does this cause the misfire?
    Thanks
    Busa
    It is the switch the gear lever attaches too. Sends the signal to the auto computer what gear you have selected.

    It is up a bit high for shallow water though. But still a possibility.

    Earth strap connections from body to engine would be a good place to look too.

  6. #6
    Join Date
    Jun 2011
    Location
    Victoria - Pakenham
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    Also, just because - water on the passenger side front floor will cause issues with the AUTO ECU as it is under the passenger seat.

    I would't call that shallow water though.

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