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volvo D12c 340 to 380

Discussion in 'Volvo Forum' started by ah fai, Dec 5, 2012.

Page 1 of 2
  1. Dec 5, 2012 #1
    ah fai

    ah fai Light Load Member

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    Aug 21, 2012
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    Need some Help..
    I try to replace volvo fm12 D12C 340 to D12C 380, the engine look good when start at idle speed, but after a period of time the engine change to like missfire, lot of black smoke, the engine vibrate and comes with fault codes injector 2,3 unknow fault.
    and my question is for both of 340/380 engine

    - Are the fuel pump same?
    - Fuel overflow valve?
    - Fuel Pressure in fuel rail ?
     
    ah fai, Dec 5, 2012
    ah fai, Dec 5, 2012
    #1
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  3. Dec 6, 2012 #2
    Pablo-UA

    Pablo-UA Road Train Member

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    D12C were supplied with Bocsh and Lucas injectors. They are not interchangable. So check for fuel injectors coding in ECM and remove cyl head cover to learn what injectors are installed.

    On US market over 90% trucks got Lucas (Delphi) injectors, on EU market a half were Bosch
     
    Pablo-UA, Dec 6, 2012
    Pablo-UA, Dec 6, 2012
    #2
  4. Dec 6, 2012 #3
    ah fai

    ah fai Light Load Member

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    ic, can i just reprogram the coding with volvo ptt techtools..?
    thanks in advance..
     
    ah fai, Dec 6, 2012
    ah fai, Dec 6, 2012
    #3
  5. Dec 6, 2012 #4
    masimo

    masimo Bobtail Member

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    Dec 6, 2012
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    OFF topic: Ah Fai are you Chinese and possibly from Anhui Province?

    Sorry, can't send pms with 0 posts.

    Mike

     
    masimo, Dec 6, 2012
    masimo, Dec 6, 2012
    #4
  7. Dec 6, 2012 #5
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    no, you cant, totally different fueling map.

    Only flash change
     
    Pablo-UA, Dec 6, 2012
    Pablo-UA, Dec 6, 2012
    #5
  8. Dec 7, 2012 #6
    ah fai

    ah fai Light Load Member

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    no, i am from malaysia.

    means i have to replace along with the injector.
    thanks Pablo..
     
    ah fai, Dec 7, 2012
    ah fai, Dec 7, 2012
    #6
  9. Dec 7, 2012 #7
    Pablo-UA

    Pablo-UA Road Train Member

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    Borispol, Ukraine
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    yep, it is easy solution. If it is not possible I have to desolder memory from ECM to change maps
     
    Pablo-UA, Dec 7, 2012
    Pablo-UA, Dec 7, 2012
    #7
  10. Dec 9, 2012 #8
    ah fai

    ah fai Light Load Member

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    can u do that ?
     
    ah fai, Dec 9, 2012
    ah fai, Dec 9, 2012
    #8
  11. Dec 9, 2012 #9
    Pablo-UA

    Pablo-UA Road Train Member

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    I can, but I'm too far and it would be too expencive with shipping

    what injectors do you have? Bosch ore Lucas?
     
    Pablo-UA, Dec 9, 2012
    Pablo-UA, Dec 9, 2012
    #9
  12. Dec 10, 2012 #10
    ah fai

    ah fai Light Load Member

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    ic,
    it delphi,
    today i replace with delphi injector and look good, but the engine idling only 1500rpm when the truck is on road..
     
    ah fai, Dec 10, 2012
    ah fai, Dec 10, 2012
    #10
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