HELP! N14 Celect Plus shutting down...

Discussion in 'Trucks [ Eighteen Wheelers ]' started by CbarM, May 23, 2013.

  1. CbarM

    CbarM Heavy Load Member

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    Jan 17, 2011
    Irvine, AB
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    The battery connections are good...the only fault codes are abs (not applicable) and low ecm power...
     
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  3. cetanediesel

    cetanediesel Medium Load Member

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    Mar 26, 2013
    Albany, NY
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    Plug into the pressure port on top of the fuel pump and see if its 120+psi when cranking. That will tell you if its a fuel problem without turning a wrench.
     
  4. OilFracker

    OilFracker Bobtail Member

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    May 19, 2013
    Williston, ND
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    I also have the same truck & engine. I had a similar problem too.

    Behind the ECM is a cooling plate that uses your fuel to keep the ECM cool. It is possible that the fuel may have debris blockage at the inlet or outlet of this cooling plate. Its an easy check. If I remember correctly........just remove the ECM itself and clean the fuel cooling orifices with an air blower nozzle.

    No $ involved. Just time and tools.

    I hope this helps.



    Sent from my DROID RAZR using Tapatalk 2
     
  5. OilFracker

    OilFracker Bobtail Member

    47
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    May 19, 2013
    Williston, ND
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    Have you had any luck resolving this issue?

    Sent from my DROID RAZR using Tapatalk 2
     
  6. claytonr1973

    claytonr1973 Light Load Member

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    Jun 1, 2008
    miami,ok
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    With his low ecm voltage code he had a bad battery or bad ecm power harness connection. This happened on my N14 twice. Once for bad ecm power connection and the 1 month later when the battery the ecm was connected to went dead. It did the exact same thing.
     
  7. mray96

    mray96 Bobtail Member

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    Jan 25, 2016
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    Did you ever figure out what the problem was? Mine is doing the same thing. Had to get towed last night.
     
  8. Kesha

    Kesha Bobtail Member

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    1
    Feb 11, 2017
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    Having problems with my 2003 Volvo with Cummins N-14 engine and regular 10 speed tranny. Have the truck for 11years and know it pretty well. Engine would cut off after about 3-5 hours of driving. It started about 2 month ago , and seems to happen more often. After first time it happened I was able to drive for 3000 miles with no problems. Starts back in 5 to 40 min. Then shut down in 10-25 miles again. Sometimes it would just drag for a part of a second but continues to run. Last time somehow I was able to find that driving slower would help to avoid problem so I was able to drive 240 miles on 55mph/90kmh and keeping RPM's around 1250-1300. So I was able to get back home.
    Yesterday I drove for 25miles, kept it idle for 2.5 hours while getting loaded and after 10 miles on a way back to yard it cut off on me again right after EPS and engine harness replacement. So it seems that it is not necessary to drive al the time to bring the issue up.
    So far I have gotten replaced part of positive red ECM wire that goes from battery compartment together with fuse housing.
    EPS- engine position sensor even if the old one showed good resistance on both reels.
    Engine harness (goes into plugs A and C of ECM)
    Plug of OEM harness that goes into ECM hole "B"
    Ground cable between starter and engine block.
    What I noticed is that Cummins Roadrelay 4 that I have in a dashboard shows constantly fluctuating RPM's like +20/-20 from average set. I don't feel it on engine noise while idle also not visible on tachometer's needle. It used to fluctuate all the time but only like +5/-5.
    When the engine shuts down the onboard diagnostics would say "MID128 Engine controller not responding" Cummins Roadrelay would pop "Data link failure".
    At the beginning of this nightmare it used to say "Engine power supply electrical fault".
    When the engine comes back to communicating diagnostics would read:
    SAE J 1708 data link electrical fault - just on a last occasion.
    SID 251 Power supply voltage below normal - on some occasions.
    Code 241 VSS Circuit becomes inactive when back to driving.
    Also EPS circuit fault after every stop becomes inactive after back to drive
    PID 190 EPS intermit or incorr on one occasion became inactive
    After 2 drags when an engine shuts down for a part of a second but continues to drive code 343 "ECM failure service soon" showed up and was already inactive.
    No problems on a dashboard cluster with lamps, gauges.
    What else to look at ECM?, data link? I would appreciate any thoughts of yours. Thank you!
     
  9. swaan

    swaan Road Train Member

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    Jul 12, 2009
    BC canada
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    I know the ecms on cummins n14s are not the most robust and have a high failure rate over say a Cat.

    I would 99% say with out a dought your ecm needs replaced.
    I would get a reman and install.
    Or if you have time ship it to diesel control services in PA. Fernando knows his stuff and would be able to tell you exactly whats wrong and fix it also.
     
    Kesha Thanks this.
  10. Smellfunny

    Smellfunny Road Train Member

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    Jan 28, 2012
    South Carolina
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    You could be losing power to ECM so check power wire to it and make sure everything is good there. If everything is good there then you will probably need to get your ECM tested or replaced. Usually when I see this issue happening the wiring harness has issues and has caused damage to the board on inside of ECM. But since you have already replaced harness I would say ECM damage.

     
    Kesha Thanks this.
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