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Thread: "The" DPF removal write-up

  1. #61
    Lifetime Member Boost's Avatar
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    I just did one and using (filtering) the info from this thread I had no problems and a great outcome. As can be suspected from the comments of more experienced folks, this is much simpler than I perhaps made it sound in the beginning. Basically you just tell the tune that it's not equipped and then block a few DTCs. Mileage and power both improved considerably, especially overall economy. (No more 8-17 mog variation haha). Thanks for everything!
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  2. #62
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    I have a EGR blocker plate and a race exhaust from the turbo down pipe back do I just install them and turn off the DPF and EGR in the tuming software or is their moer that I have to do

  3. #63
    Lifetime Member Boost's Avatar
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    Quote Originally Posted by plumber1 View Post
    I have a EGR blocker plate and a race exhaust from the turbo down pipe back do I just install them and turn off the DPF and EGR in the tuming software or is their moer that I have to do
    I had a customer that used a hand-held programmer to disable the DPF and his truck still set a check engine light and smoked / hesitated. I had him return it to stock and then I turned off every single thing I saw in the tune that was DPF related plus any of the codes he had current such as EGR and a mass air flow one I think. Runs like a champ now, no lights or hiccups. You can try that it's relatively easy.
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  4. #64
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    I have removed about a dozen of these with no problems, but I have one truck that keeps "reverting" after a few weeks and I have to reflach it again. What could be causing this?

  5. #65
    Lifetime Member Boost's Avatar
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    That should not be happening at all. Sounds like you are just silencing or resetting something. Please post the codes it sets when it "reverts". Also what in the tune are you altering to try to make it work?
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

  6. #66
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    Default DTC codes after DPF delete

    Change ecm p0546 to X: Not Reported, No MIL
    Change ecm p2033 to X: Not Reported, No MIL

    So far so good no check engine light and runs like a champ.

    07.5 LMM
    EFI live #FS2-GM stock with just DPF params set to off and above DTC codes changed to values stated.
    6" tip
    5" flo pro #634 from turbo back, free flowing muffler, sounds awesome.

    Ran this thing with codes after exhaust install for last 2 weeks and no problems. Finally tackled it today with the programmer. No codes and light is out.

  7. #67
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    Quote Originally Posted by probeen View Post
    Change ecm p0546 to X: Not Reported, No MIL
    Change ecm p2033 to X: Not Reported, No MIL
    Did a delete on an 08 LMM the other day. These two codes show up every time i scan it, but dont seem to be a problem or throw an engine light. Ive tried turning them "off" all 3 ways available
    06 Laramie 3500 QC SB 4x4 - Full billet Auto by DTT, HE351/S475 twins, EFI live, lots of custom goodies....

    07 6.2L Yukon Denali - CAI, CAT delete, self tuned with EFI Live

    03 Trailblazer 4.2L I6 - CAI, custom exhaust, EFI live

    2010 Laramie 3500 CC LB 4x4 - H&S, DPF delete, waiting for EFI Live.....

  8. #68
    Lifetime Member THEFERMANATOR's Avatar
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    Quote Originally Posted by skneeland View Post
    Did a delete on an 08 LMM the other day. These two codes show up every time i scan it, but dont seem to be a problem or throw an engine light. Ive tried turning them "off" all 3 ways available
    There are SEVREAL differrent kinds of code scans. Shutting teh codes off will prevent them from turning on the light and showing up with a generic code reader, BUT the ymay still show up in a FULL code scan with the V2 or a TECH 2.
    1995 GMC 2500 SUBURBAN powered by 01 DURAMAX/ALLISON, little of this, a little of that,
    DIAMONDEYE 4" exhaust, CORSA muffler, AFE stage 1 dry filter, custom tuning by me, KENNEDY single pump and pump rub kit.

  9. #69
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    I did DPF and the EGR delete on a '07.5 LMM. (4" straight, turbo back MBRP) Runs good, but is throwing code P0549. Any suggestions? Also, it really hisses out the exhaust.... Sounds like the exhaust is plugged. What am i missing?

  10. #70
    Lifetime Member Boost's Avatar
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    It will hiss a lot with exhaust when the vanes are closed. Does it sound like an LBZ under boost?
    '12 Caprice PPV 6.0 L77 - daily transportation
    8.7 @ 84 (1/8 mile) bolt-ons

    '02 Silverado RCSB 5.3 L59 - regularly street driven
    8.2 @ 86 (1/8 mile) stock cam and spray
    8.6 @ 84 (1/8 mile) cam and heads no spray

    Our YOUTUBE CHANNEL featuring the Silverado

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