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Thread: DPF experts required

  1. #1
    Regular Member kman247's Avatar
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    Default DPF experts required

    I am experiencing DPF high pressure issues since I had the car remapped. What I want to know is , if I remove all the internals out of the DPF and have that part mapped out will I experience issues. Or do I have to leave part of the filter inside , so I still have back pressure? The company that mapped the car originally will remove the DPF from the map for another £50 , so no issues there , just want to know what is best to clear it out totally or just partially.
    Thanks.

  2. #2
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    Vehicle : Vectra

    Trim : SRI

    Engine : 3.0 V6 CDTI

    Year : 2007

    Default

    If you are having it mapped out then either remove the internals or replace the entire unit with a piece of pipe.

  3. #3
    Regular Member vxpenfold's Avatar
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    Vehicle : Vectra Hatchback

    Trim : Life(well it was)

    Engine : Z19DTH

    Year : 2005

    Mileage : 166000

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    knock it through fully or replace it and map it out mate, there are no downsides and alot of upsides if your having dpf troubles

    the map isnt really due to the backpressure its so the ecu doesnt try a regen which it cant do using large amounts of fuel

  4. #4
    Regular Member kman247's Avatar
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    Default

    So if I remove all the internals and then have it mapped out it will be fine?

  5. #5
    Regular Member vxpenfold's Avatar
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    Vehicle : Vectra Hatchback

    Trim : Life(well it was)

    Engine : Z19DTH

    Year : 2005

    Mileage : 166000

    Default

    yepo not a problem, i think several other members have done it, if its not there and the ecu dont know anything about what a dpf is lol then all is ok

  6. #6
    Regular Member ANDY W's Avatar
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    Ian at MPG now do DPF jobs and he removes then with software which is basically a remap and then you can gut or remove the DPF itself and replace with a straight through pipe. Ian also says its quicker and easier to actually remove the DPF rather than knock its guts out. Its my next modd for sure

  7. #7
    Regular Member rockonoli1's Avatar
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    Default

    Do you have to have DPF mapped out or can you just thrash the middle out

  8. #8
    Regular Member ANDY W's Avatar
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    So I have been told to avoid errors etc, if the ECU has no trace of DPF on it then no DPF issues will happen
    Last edited by ANDY W; 21st September 2011 at 18:06. Reason: spelling

  9. #9
    Regular Member rockonoli1's Avatar
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    If there is no insides the DPF pressure sensor surely would get the same readings so in theory DPF "will never need regenerating"

  10. #10
    Regular Member ANDY W's Avatar
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    Other factors are there to but I am not sure. 1 example is my Remap makes the DPF do a regen every 1000mls so that would be a problem and apparantly you can make your DPF regen by driving at a constant high rpm for a few miles like on a motorway so again another problem. Try it your way and report back as you might be right but I think you will have issues

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