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DETROIT DDEC3 vs DDEC4?

Discussion in 'Trucks [ Eighteen Wheelers ]' started by jsnap, May 6, 2009.

  1. May 6, 2009 #1
    jsnap

    jsnap Light Load Member

    77
    7
    Apr 10, 2008
    ststen island NY
    0
    Whats the diff in the 2 ecm,s i ask because i have a shot at a bully dog big rig programmer for nearly nothing but it states ddec 4 and up and mine is ddec3 i thought they were the same so let me know if anyone knows i appreciate all input thanks. Richie
     
    jsnap, May 6, 2009
    jsnap, May 6, 2009
    #1
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  3. May 7, 2009 #2
    Six8888

    Six8888 Bobtail Member

    16
    0
    Apr 16, 2009
    Fontana, Ca
    0
    they are different, if they were the same they'd have the same revision number. When DDE makes changes to ecms and the programming level number will change. DDEC 3 is not compatible with 4
     
    Six8888, May 7, 2009
    Six8888, May 7, 2009
    #2
  4. May 7, 2009 #3
    PaulE

    PaulE Medium Load Member

    413
    145
    Jan 15, 2009
    Verona Wi
    0
    google bully dog big rig. call toll free #.talk to Justin Mcarthy.he is lead engineer.he will have your answer. nice guy. good luck.
     
    PaulE, May 7, 2009
    PaulE, May 7, 2009
    #3
  5. May 7, 2009 #4
    jsnap

    jsnap Light Load Member

    77
    7
    Apr 10, 2008
    ststen island NY
    0
    Obviously I know as anybody would that there is a difference in the 2 ecms hence the different #,s but whats the difference in the 2 is what i need to know, If i recall correctly they are interchangable the difference may only be and im hoping this to be the case is proccessor speed and things like that.
     
    jsnap, May 7, 2009
    jsnap, May 7, 2009
    #4
  7. May 7, 2009 #5
    FYDA FREIGHTLINER CINCY

    FYDA FREIGHTLINER CINCY Light Load Member

    270
    131
    Apr 28, 2009
    Cincinnati, ohio
    0
    as far as we now the only difference is the speed and memory. but we also think the extra memory takes care of more timing on the 4 then the 3. both will bolt up, but when u go from a 3 to 4 u have to call detroit and have them change your ecm program from a 3 to 4, so i don't think the bully dog will work for that reason, it will be looking for that extra timing...
     
    FYDA FREIGHTLINER CINCY, May 7, 2009
    FYDA FREIGHTLINER CINCY, May 7, 2009
    #5
  8. May 10, 2009 #6
    DD14

    DD14 Light Load Member

    177
    32
    Jan 21, 2009
    Ontario
    0
    A DDEC3 ECM can't be made into a DDEC4 they have different inputs/outputs.You could bolt it on but there would some communication conflicts.
     
    DD14, May 10, 2009
    DD14, May 10, 2009
    #6
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