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  1. #1
    deano1978's Avatar
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    black soot from rear exhausts

    Since my full egr delete. Ive noticed quite abit of black soot all over the rear!
    Is this normal,as all the crap is going through the exhaust or somthing else to worry about?
    A4 avant b6.1.9 avf 6 speed. Bv43 turbo.uprated fmic. More bhp custom map. Powerflow straight through twin pipes. Allard delete kit. Boost,egt, + voltage gauges. Ball,spring boost controller. Fk silversport coilovers. 312mm brake upgrade. B7 multifunc steering wheel. Full dis. Cruise control. Auto locks. Rs4 rear bumper. Full rs4 grills. Drls + hids. 10inch custom sub + amp. Rear parking sensors. Leds everywhere. Parrotkit full speaker streaming. silver 4d carbon interior.never ending...

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  3. #2
    BahnStormer77's Avatar
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    TDI engines WILL generate black soot if you boot them...
    LostBok/BahnStormer77
    A6 (C7) Avant 3.0TFSI, DSG, rain and light sensor pack, LED headlight pack, MMI touch, SDS high, AMI, 360deg sensors + auto-park, Dunlop SP Winter Sports / Pirelli P Zero's.

  4. #3
    deano1978's Avatar
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    Never noticed b4. Its like someone throws black talc powder over it.
    A4 avant b6.1.9 avf 6 speed. Bv43 turbo.uprated fmic. More bhp custom map. Powerflow straight through twin pipes. Allard delete kit. Boost,egt, + voltage gauges. Ball,spring boost controller. Fk silversport coilovers. 312mm brake upgrade. B7 multifunc steering wheel. Full dis. Cruise control. Auto locks. Rs4 rear bumper. Full rs4 grills. Drls + hids. 10inch custom sub + amp. Rear parking sensors. Leds everywhere. Parrotkit full speaker streaming. silver 4d carbon interior.never ending...

  5. #4
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    Re: black soot from rear exhausts

    Have you had it mapped?

    Some maps dump **** loads of fuel in which can cause black smoke/soot

    Although mine is clean as a whistle after blanking my egr

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    black soot from rear exhausts

    Could be just the inlet manifold clearing itself out, mine gave a good few coughs of smoke after deleting the EGR on mine but its fine now.
    Chris "the machine" Green.
    2004 Audi A4 1.9tdi Sport Quattro Avant

  7. #6
    deano1978's Avatar
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    Think italian tune up is needed then. Mpg is better now so not worried its chucking to much in.
    A4 avant b6.1.9 avf 6 speed. Bv43 turbo.uprated fmic. More bhp custom map. Powerflow straight through twin pipes. Allard delete kit. Boost,egt, + voltage gauges. Ball,spring boost controller. Fk silversport coilovers. 312mm brake upgrade. B7 multifunc steering wheel. Full dis. Cruise control. Auto locks. Rs4 rear bumper. Full rs4 grills. Drls + hids. 10inch custom sub + amp. Rear parking sensors. Leds everywhere. Parrotkit full speaker streaming. silver 4d carbon interior.never ending...

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    As you have carried out an egr delete I would expect the results you have specially as your signature says the car is remapped too. Anything the egr had been reburning through the engine is now just going straight down the exhaust and burning up in the cat. Hence more soot out the rear.

  9. #8
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    Quote Originally Posted by Ian-83 View Post
    As you have carried out an egr delete I would expect the results you have specially as your signature says the car is remapped too. Anything the egr had been reburning through the engine is now just going straight down the exhaust and burning up in the cat. Hence more soot out the rear.
    that makes sence.. not thought of it like that
    A4 1.9TDI Sport - 130 (B6) / Mods: None yet, just getting the basic right first

  10. #9
    deano1978's Avatar
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    Thats what i thought. Just double checking :-)
    A4 avant b6.1.9 avf 6 speed. Bv43 turbo.uprated fmic. More bhp custom map. Powerflow straight through twin pipes. Allard delete kit. Boost,egt, + voltage gauges. Ball,spring boost controller. Fk silversport coilovers. 312mm brake upgrade. B7 multifunc steering wheel. Full dis. Cruise control. Auto locks. Rs4 rear bumper. Full rs4 grills. Drls + hids. 10inch custom sub + amp. Rear parking sensors. Leds everywhere. Parrotkit full speaker streaming. silver 4d carbon interior.never ending...

 

 

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