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Question about cat ecm info

Discussion in 'Trucks [ Eighteen Wheelers ]' started by lakelovrs, Nov 26, 2012.

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  1. Nov 26, 2012 #1
    lakelovrs

    lakelovrs Bobtail Member

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    Nov 3, 2010
    Michigan
    0
    I did a quick search so if I'm reposting an answered question my apologies. I tried to read total mileage with a scan tool on my 2000 6NZ motor reading I got everywhere I looked was 55,670. My question is when looking at this does cat usually show the 7th digit i.e. 1,o55,670? I guess I assumed it would, kinda threw me off when it only showed 55,670. Thanks for any help I greatly appreciate it.
     
    Last edited: Nov 26, 2012
    lakelovrs, Nov 26, 2012
    lakelovrs, Nov 26, 2012
    #1
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  3. Nov 27, 2012 #2
    Gear head

    Gear head Medium Load Member

    532
    91
    Apr 1, 2012
    Belair,md
    0
    maybe someone changed the ecm.
     
    Gear head, Nov 27, 2012
    Gear head, Nov 27, 2012
    #2
  4. Nov 30, 2012 #3
    lakelovrs

    lakelovrs Bobtail Member

    35
    26
    Nov 3, 2010
    Michigan
    0
    How many hours would you typically see with say a million miles versus 2 million miles? thanks again
     
    lakelovrs, Nov 30, 2012
    lakelovrs, Nov 30, 2012
    #3
  5. Nov 30, 2012 #4
    morehp

    morehp Medium Load Member

    699
    206
    Jun 18, 2012
    0
    Does it have the average speed and total hours still in the ecm? A rough calculation with that will give you an indercation of the miles traveld if nothing has been reset in a whyle . Try average speed x total hours .
     
    morehp, Nov 30, 2012
    morehp, Nov 30, 2012
    #4
  7. Nov 30, 2012 #5
    Mr. Haney

    Mr. Haney Road Train Member

    2,693
    2,040
    Dec 17, 2008
    0
    Are you looking in the Driver or Fleet Trip History? If you are, these could have been reset recently. You need to look at Current Totals to read the life history of the ECM. It takes a Factory Password to change Current Total History. I've also seen ECMs that have lost some of the data due to the internal batteries starting to fail. Also when an ECM is changed from one class of engine to another, it may lose the prior history stored in it.
     
    Mr. Haney, Nov 30, 2012
    Mr. Haney, Nov 30, 2012
    #5
  8. Nov 30, 2012 #6
    freight1

    freight1 Bobtail Member

    12
    0
    Nov 30, 2012
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    Usually shows all #'s. Something is amiss.
     
    freight1, Nov 30, 2012
    freight1, Nov 30, 2012
    #6
  9. Dec 1, 2012 #7
    lakelovrs

    lakelovrs Bobtail Member

    35
    26
    Nov 3, 2010
    Michigan
    0
    Readings I got were total miles... 53007, total hrs... 31324 no one with factory password has been near it. It hasn't been changed since I've owned it. So what happens if internal batteries fail completely?
     
    lakelovrs, Dec 1, 2012
    lakelovrs, Dec 1, 2012
    #7
  10. Dec 1, 2012 #8
    freight1

    freight1 Bobtail Member

    12
    0
    Nov 30, 2012
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    Then more #'s should be off or wrong. Sounds like it may have been switched before u got it or someone had it reprogramed and there may have been a glitch.
     
    freight1, Dec 1, 2012
    freight1, Dec 1, 2012
    #8
  11. Dec 1, 2012 #9
    lakelovrs

    lakelovrs Bobtail Member

    35
    26
    Nov 3, 2010
    Michigan
    0
    I've put about 190,000 miles on it, and no reprogramming or anything like that.
     
    lakelovrs, Dec 1, 2012
    lakelovrs, Dec 1, 2012
    #9
  12. Dec 1, 2012 #10
    freight1

    freight1 Bobtail Member

    12
    0
    Nov 30, 2012
    0
    Look for average mph or mpg to see if there was an internal problem. If those are correct then I am at a liss. You may be able to cross refrence the ecm ser# with the motor vin # with manufactor to see if its been changed.
     
    freight1, Dec 1, 2012
    freight1, Dec 1, 2012
    #10
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