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Need help understanding "New" codes in Paccar engine.

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by Guntoter, Jul 26, 2015.

Page 2 of 21
  1. Aug 30, 2015 #11
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    Hi to all

    First af all I'd ask u about truck configuration.

    Code u can see is erratic CAN2 data, usually related with speed control/

    Any aftertreatment light, power derate ore?
     
    Pablo-UA, Aug 30, 2015
    Pablo-UA, Aug 30, 2015
    #11
    mhyn Thanks this.
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  3. Aug 30, 2015 #12
    mhyn

    mhyn Road Train Member

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    Pash what do you mean by asking about truck configuration?
     
    mhyn, Aug 30, 2015
    mhyn, Aug 30, 2015
    #12
  4. Aug 30, 2015 #13
    Guntoter

    Guntoter Road Train Member

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    Phoenix, AZ
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    2013 - 388 with MX-13 , 13 speed, 3.36.
    I have had CAN-2 codes several times. CAN BUS 2, 1939 codes etc... you name it. "Re-Gen required" every few hours, sometimes it takes an hour sometimes It completes a parked re-gen in 10 minutes. I had erratic re-gen temps so they started with a doser, then replaced everything else in the after treatment. Ive had several "techs" (parts changers) inside the after treatment system and they never find any problems... I replaced it all anyway. Ive had electronic "techs" go through the entire ECM/Harness/sensor system. Nobody can find anything. I get "stop engine" all the time (literally 90% of the time Ive been on the road) it has never de-rated but it did shut off once then started after I unhooked the batteries. Im thinking about just driving until it stops then let the bank come and get it.
     
    Guntoter, Aug 30, 2015
    Guntoter, Aug 30, 2015
    #13
  5. Aug 30, 2015 #14
    91B20H8

    91B20H8 Road Train Member

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    your symptoms sound similar to problems I was having with mine a real good tech finally found a plug near the DPF that had a little corrosion on it and was causing erratic readings
     
    91B20H8, Aug 30, 2015
    91B20H8, Aug 30, 2015
    #14
    magoo68, Guntoter and daf105paccar Thank this.
  7. Aug 30, 2015 #15
    Jayrag

    Jayrag Light Load Member

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    Aug 14, 2015
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    I have a kW t700 2012 with paccar engine. My check engine light stays on with a Fault code that reads: connect service tool.
    Truck runs fine but these paccar engines throw out false codes. I had a engine fan go bad and it took 2 trips to kw to fix it right. 4 or 5 days at kw each time.
     
    Jayrag, Aug 30, 2015
    Jayrag, Aug 30, 2015
    #15
  8. Aug 31, 2015 #16
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    Quation #2. Emission level/

    DEF? DPF?
     
    Pablo-UA, Aug 31, 2015
    Pablo-UA, Aug 31, 2015
    #16
  9. Aug 31, 2015 #17
    GrapeApe

    GrapeApe Road Train Member

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    DPF and DEF, it's an EPA2013 engine.
     
    GrapeApe, Aug 31, 2015
    GrapeApe, Aug 31, 2015
    #17
    Guntoter Thanks this.
  10. Aug 31, 2015 #18
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    Ok, now u need diagnostic tool to for montoring faulty data
     
    Pablo-UA, Aug 31, 2015
    Pablo-UA, Aug 31, 2015
    #18
  11. Aug 31, 2015 #19
    daf105paccar

    daf105paccar Road Train Member

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    So,Pablo,which one you suggest?
     
    daf105paccar, Aug 31, 2015
    daf105paccar, Aug 31, 2015
    #19
  12. Aug 31, 2015 #20
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    usually clogged cat converter ore bad NOx sensor

    Engine ECM reads this code if aftertreatment unit has codes with derate.

    U need paccar electronic analist software ore DAF Davie to read aftertreatment unit codes
     
    Pablo-UA, Aug 31, 2015
    Pablo-UA, Aug 31, 2015
    #20
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