Monster MotorsportEM Tuning
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  1. #1
    Neutral

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    A3 20vt quattro smoky idle

    Hi guys i have a a3 running revo stage 2.5 and have recently fitted a decat pipe and since doing this it smokes quite bad on idle not blue smoke/oil just smells normal. any ideas wat can be causing this thanks
    13.8 santapod gti fest 2010 class g 1st place winner. A3 1.8 20vt 180 quattro, Revo stage 2.5 map,[/B] Forge tip, forge cold side, Forge splitter valve, Carbonio cold intake with aem filter,decat pipe, 2.5inch exhaust, k03s turbo with forge actuator, revs fmc with forge houses, j n75 valve, 4 bar fuel reg, hid's, 17" tt alloys t1r



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  3. #2
    S3 Paul's Avatar
    6th Gear

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    Did you have the post cat lambda sensor turned off?
    If you didnt that may be the problem. Failing that i would get the car logged and checked with vag com.
    A cat will hide a few things... worn engine parts being one of them.
    Noggy Blue 2001 S3

    I ask questions because i change my mind so much. If i ask questions you have already covered... just leave it be?

  4. #3
    Welly's Avatar
    VX220 SC Driver :)

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    Are you sure it's smoke and not just condensation? Bear in mind you have no cat in there now - extra condensation is common.
    ------------------------------------------------------------------------------------------
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  5. #4
    RIP S3dave

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    turbo... tired.. and or exhaust valve guides/stem seals
    change of backpressure on the seals without cat now can it seems draw oil out

    how oiley are your charge pipes?
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  6. #5
    Neutral

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    Charge pipes have small amounts of oil, turbo was rebuild only 12k ago but it does have a hard life so maybe it time for second rebuild, or hybrid time :-) if it still smokes be stem seals I guess, thanks for replys.
    13.8 santapod gti fest 2010 class g 1st place winner. A3 1.8 20vt 180 quattro, Revo stage 2.5 map,[/B] Forge tip, forge cold side, Forge splitter valve, Carbonio cold intake with aem filter,decat pipe, 2.5inch exhaust, k03s turbo with forge actuator, revs fmc with forge houses, j n75 valve, 4 bar fuel reg, hid's, 17" tt alloys t1r



 

 

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