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N14 ECM Plug

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by awarthogfan, Jun 22, 2022.

Page 2 of 3
  1. Jun 22, 2022 #11
    awarthogfan

    awarthogfan Bobtail Member

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    It would be better if there was a way to do it without doing that, but if there isn’t I’ll go that route
     
    awarthogfan, Jun 22, 2022
    awarthogfan, Jun 22, 2022
    #11
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  3. Jun 22, 2022 #12
    BoxCarKidd

    BoxCarKidd Road Train Member

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    That deal pup is talking about is easier if your truck has one. Google search that connector and you will know what you are looking for.
     
    BoxCarKidd, Jun 22, 2022
    BoxCarKidd, Jun 22, 2022
    #12
    spsauerland and pup Thank this.
  4. Jun 22, 2022 #13
    pup

    pup Light Load Member

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    It"s where the fuel pump bolts to the compressor. between the pump & the block. ​
     
    pup, Jun 22, 2022
    pup, Jun 22, 2022
    #13
    spsauerland Thanks this.
  5. Jun 23, 2022 #14
    Inderjit

    Inderjit Heavy Load Member

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    The engine mounted diagnostic connector is normally bolted to a bracket that
    attaches to the intake manifold above the ECM. It may have been removed
    and tied up out of the way. Its a round 6 pin plug with a square flange. It was
    supposed to be used for flashing the ECM.
    Cummins said data could be corrupted flashing through the cab connector. Both could be used as a diagnostic connector.
    I have never seen the connector in the cab either and I have been a truck mechanic for 42 years. The connector in the cab could be replaced with the one that the communication adapter uses. There are 4 wires used the twisted pair J1708 data-link and a 12 volt power and ground.
     
    Last edited: Jun 23, 2022
    Inderjit, Jun 23, 2022
    Inderjit, Jun 23, 2022
    #14
    BoxCarKidd and spsauerland Thank this.
  6. Jun 23, 2022 #16
    pup

    pup Light Load Member

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    Celect plus had the connector on the intake manifold. Early celect did not
     
    pup, Jun 23, 2022
    pup, Jun 23, 2022
    #16
    bjytech, BoxCarKidd and spsauerland Thank this.
  7. Jun 23, 2022 #16
    awarthogfan

    awarthogfan Bobtail Member

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    I’ve looked and can’t find it there, if it helps the model on the engine is an 14-330E. The only hookup I see is the picture I sent earlier of the one beside the ECM. Have you ever seen that plug before because the mechanics I brought the truck too said they haven’t
     
    awarthogfan, Jun 23, 2022
    awarthogfan, Jun 23, 2022
    #16
  8. Jun 23, 2022 #17
    pup

    pup Light Load Member

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    The plug you’ve circled in that photo isn’t a datalink. Key switch, engine brake, coolant level & fan clutch wiring runs through that plug.
     
    pup, Jun 23, 2022
    pup, Jun 23, 2022
    #17
    bjytech and spsauerland Thank this.
  9. Jun 23, 2022 #18
    awarthogfan

    awarthogfan Bobtail Member

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    Makes sense when they tried hooking the computer to it that it wouldn’t fit, for some reason I can’t find the one at the pump. You’d think they would’ve known that they weren’t hooking to the right thing. They told me to take the ECM off and bring it to them and they would bench it, which I’d rather not go through the trouble of doing if I can find a datalink
     
    awarthogfan, Jun 23, 2022
    awarthogfan, Jun 23, 2022
    #18
  10. Jun 23, 2022 #19
    awarthogfan

    awarthogfan Bobtail Member

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    I’ll keep looking, is there a possibility that someone has taken it off for some reason?
     
    awarthogfan, Jun 23, 2022
    awarthogfan, Jun 23, 2022
    #19
  11. Jun 23, 2022 #20
    spsauerland

    spsauerland Road Train Member

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    Early data link on Celect was just a 2pin weatherpack. You had to supply separate power and ground. Above your fuel filter in picture.
     
    Last edited: Jun 23, 2022
    spsauerland, Jun 23, 2022
    spsauerland, Jun 23, 2022
    #20
    Flint1 and awarthogfan Thank this.
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