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Thread: Anyone have a list of DDE 2/2.1 fault codes??

  1. #1
    Join Date
    Sep 2005
    Location
    Swansea South Wales
    Posts
    69

    Default Anyone have a list of DDE 2/2.1 fault codes??

    Tried searching the web and the various TIS type CD's Ive got, but cant find any codes there--Plenty for the Motronic systems but nothing for the Digital Diesel Electronics......

    A full list would be really appreciated...........

    The stomp test (Which does work for the DDE) shows three recorded errors

    15 (which I think may be the charge air sensor, as this code appeared after I messed around with it.............)
    29--No Idea.
    30--No Idea.

    Irratic idling, mis-firing and poor starting with heavy diesel-knock for half a second after starting are the engine symptoms. Driving shows hesitancy at around 2K revs, not gear dependant. Boot it and it pulls fine, with no apparent mis-fire no smoke or nasty noises.......

    Is it possible to erase the fault codes without a special gizmo--Tried the Motronic erase proceedure which does not work. Any help appreciated........

  2. #2
    Join Date
    Feb 2004
    Location
    Aberdeen, Scotland, UK
    Posts
    76

    Default

    make of these what you can, cant remember where i got them, may not be correct, but hope helps

    DDE1
    1 rpm transmitter
    2 temperature sensor - fuel
    3 temperature sensor - engine coolant
    4 pedal position transmitter
    5 boost pressure sensor
    6 throttle position potentiometer
    7 boost pressure regulator
    8 air mass position
    10 speed regulator
    11 compute coupling
    12 temperature sensor - air
    13 rpm data line
    14 start of injection
    15 exhaust gas recirculation
    16 start of injection regulator
    17 brake test switch
    36 water level sensor


    DDE2

    0 undefined fault
    1 air mass sensor
    3 electronic turn off unit
    5 start of injection transmitter
    6 glow period regulator
    10 start of injection regulator
    15 voltage supply DDE control unit
    20 speed regulator
    21 throttle position potentiometer
    28 clutch switch
    29 speed signal
    31 brake switch
    35 temperature sensor - fuel
    36 water in fuel sensor
    37 pedal position transmitter
    41 glow period regulator
    45 theft protection system
    47 rpm transmitter
    52 temperature sensor - charge air
    53 temperature sensor - engine coolant
    54 boost pressure sensor
    56 internal control unit fault
    58 disturbance of high level stage
    59 deviation of boost pressure
    Iain

    1993 BMW 525 TDS SE 150K 2.5 Turbo Diesel, performance air filter, lowered sports suspension 30mm, full stainless decat exhaust, boot-lid spoiler, OBC retrofit, E60 Trapezoid alloys

  3. #3
    Join Date
    Feb 2004
    Location
    Aberdeen, Scotland, UK
    Posts
    76

    Default

    tried mine again yesterday, i have previously got a code that wasnt listed, gone now.

    now i do stomp test and get code 10. according to my list - start of intection regulator.

    can anyone confirm this is the correct code?? and what it means.

    hesitation around 2k ensure your intank lift pump works correctly
    Last edited by iainand; 10-30-2005 at 03:16 AM.
    Iain

    1993 BMW 525 TDS SE 150K 2.5 Turbo Diesel, performance air filter, lowered sports suspension 30mm, full stainless decat exhaust, boot-lid spoiler, OBC retrofit, E60 Trapezoid alloys

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