5EK to 2WS

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by rydr, May 29, 2020.

  1. mr.gt 3406

    mr.gt 3406 Bobtail Member

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    Sep 30, 2020
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  3. mr.gt 3406

    mr.gt 3406 Bobtail Member

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    Sep 30, 2020
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    Post is old but curious as to what you went through with..
    My 2008 389 has SDP with broke crank and I have access to a 5EK.. Did you do the swap if so did you buy the harness with the process module??
     
  4. rydr

    rydr Light Load Member

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    Jan 8, 2019
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    Yes my 2008 went from sdp to 5ek. Gotta buy the harness with processor.
     
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  5. Kswapp13

    Kswapp13 Bobtail Member

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    May 11, 2022
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    Does anybody know what pins to change on sdp harness to 6nz ecm? I have a 2008 kenworth multiplex no gauges working, 6nz ecm is 70 pin but the sdp was a 120 pin does anything need to be changed for this engine swap to work? Thanks in advance
     
  6. pushbroom

    pushbroom Road Train Member

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    6nz needs j1939 powertrain datalink turned on. Then cruise/jakes/fan override turn to j1939 vs hardwired. Should just be ecm parameters
     
    Kswapp13, Oxbow, 062 and 1 other person Thank this.
  7. Kswapp13

    Kswapp13 Bobtail Member

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    May 11, 2022
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    Thank you push broom for your reply, let me go back a bit, i had a sdp acert in this truck, then switched to 6nz (used the original sdp truck side harness on the 6nztruck will start and run, but no gauges no oil pressure gauges or rpm, got into cat et and changed powertrain datalink to j1939 still nothing, try to connect to cab with esa and I get an error saying software out of date on truck
     
    Oxbow Thanks this.
  8. bjytech

    bjytech Light Load Member

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    Nov 9, 2013
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    After turning the powertrain data link to j1939 you will still need to go in to your output selections and change the appropriate outputs to the cab controller instead of a ECM pin output.
    If it still doesn't work then it probably needs the flash file in the ECM changed, I can't remember exactly but I think for 2008 and newer trucks the 6NZ needs a flash file that starts with 338- or higher to talk to the CECU.
     
  9. Kswapp13

    Kswapp13 Bobtail Member

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    May 11, 2022
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    I think it may still have a flash from 05 in there on the ecm I’ll give it a look, I’ll be honest this is my first time messin with this kinda electronic ecm stuff so definitely a learning curve thank you for your inputs
     
    bjytech and Oxbow Thank this.
  10. Kswapp13

    Kswapp13 Bobtail Member

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    May 11, 2022
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    Does anybody have a place to call to have the flash file updated to on this 6nz for the newer trucks? Thanks
     
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