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how does atmospheric dump Valve on my 1.8t work fine???

Discussion in 'A3/S3 Forum (8L Chassis)' started by valyboi, Jan 13, 2014.

  1. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Hello just bought a new car mk4 golf 1.8t look at it someone have fitted a dv to it already it's called turbosmart kampact bov dump valve I believe it's a atmospheric valve people say they don't suppose to work tidy but this seams fine and don't show no codes ect

    It's on ebay iv found a few much help would be great
    Last edited: Jan 13, 2014
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  3. valyboi
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    valyboi Member

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  4. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jan 13, 2014]
    Depends on your definition of 'works fine'...

    My wife drove around for a couple of months with the front brake pads so worn it was metal on metal... other than a little bit of noise according to her the brakes 'worked fine'...

    Facts are... atmos valves cause running issues on 20v's turbo engines... some manifest more obviously than others and AGU/cable throttle ECU's are more tolerant fault code etc wise than the more modern ME7 based ECU's...

    The ECU uses the MAF to measure air coming into the engine so it can calculate the injector on time for the correct AFR... atmos valves vent this metered air but the ECU has already worked out the injector ontime for when you next put your foot down... only at this point there is actually less air in the system than it thought it had and the AFR goes rich... this could just cause a hiccup for the engine or cause a misfire from the mixture being too rich... really does depend on whats happening at the time...

    Either way the engines with factory ECU's just run better and cause less issues on recirculating valves...

    <tuffty/>
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  5. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Okay not as that had with the brakes lol

    My mate's got a 1.8t standard car with a forged 007 dv
    I have standard with a turbosmart atmospheric valve

    Both cars feel the same delivering power should I just get rid of this one and get a recurculated one
    #4
  6. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Also my engine code is aum
    #5
  7. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jan 13, 2014]
    Personally unless you want expensive bling then get a brand new OE valve... it just works... if you must spend money on one then get a new 007 or 008 from Forge...

    <tuffty/>
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  8. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Yeah I think il just buy a proper recir forge 007 8 what's the difference between the two sorry I'm all new to this

    One thing can this atmospheric one do anything bad to my car just to leave it there untill I buy a proper one
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  9. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jan 13, 2014]
    It won't do damage as such... it just gives running issues... you will be ok but get it done sooner rather than later...

    <tuffty/>
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  10. JUS3IN
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    JUS3IN silver sleeper

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    [Jan 13, 2014]
    my standard valve makes a great noise on my mapped s3 imo...
    #9
  11. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Thanks for the replys guys il have a loot asap now for a recirculatio. Valve
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  12. Lavis89
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    Lavis89 Active Member

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    [Jan 13, 2014]
    If you want a bit more noise then get it remapped, mine makes a awesome noise after the map, probably louder than the vent to atmosphere valve that came on the car when I got it
    #11
  13. valyboi
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    valyboi Member

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    [Jan 13, 2014]
    Thank you lavis I was Thinking getting it done soon. Enough
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  14. Lavis89
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    Lavis89 Active Member

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    [Jan 13, 2014]
    you wont regret it, i got mine done at badger5 (not too far from you i think), the car is completely different now, so much fun to drive, and im only at stage 1 mods
    #13
  15. valyboi
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    valyboi Member

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    [Jan 14, 2014]
    Thanks :) where to ruffly is badger5
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  16. <tuffty/>
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    <tuffty/> Badger 5 Edition Staff Member Moderator

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    [Jan 14, 2014]
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  17. valyboi
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    valyboi Member

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    [Jan 14, 2014]
    :) il have a look
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