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  1. #1
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    Can anyone identify this?

    Can anyone identify this box on my Audi A3 1.8T 8L 1999. It is on the back wall of engine bay to the right. The cap is missing and there seems to be a diaphragm. What does it do, what is it called?
    I´ve borrowed this picture off Internet (not my car) and circled item in question.
    What is this.jpg

    Thanks

    Ian
    Last edited by immac; 2nd July 2013 at 08:21.

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  3. #2
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    isn't there usually a relay in there? i might be shooting in the dark a bit here but people usually remove this box and put the relay in the trunking next to it when mounting a oil catch can
    2001 1.8T Quattro Sport 89k covered ARY engine.
    Remapped at Badger 5, 213bhp - 235lb/ft torque.
    HS2K cone, FMDV008, Silicon TIP, 18" RS4 (reps), AP coilovers, Catch can, n249 bypass, Toyosport 3" Downpipe/Decat, S3 Front brakes, Polyflexed Dogbone, S3dave adjustable tie bars

    Soon to be done: SAI delete, Install the toyosport FMIC i have kicking about in my living room

  4. #3
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    Barometric pressure sensor. Measures atmospheric pressure to compensate your cars fuelling/timing.
    2008 8P S3- Black edition. 'all the options....'

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    Quote Originally Posted by BENJAMIN View Post
    Barometric pressure sensor. Measures atmospheric pressure to compensate your cars fuelling/timing.
    yup i was definitely shooting in the dark. hahahahaha
    2001 1.8T Quattro Sport 89k covered ARY engine.
    Remapped at Badger 5, 213bhp - 235lb/ft torque.
    HS2K cone, FMDV008, Silicon TIP, 18" RS4 (reps), AP coilovers, Catch can, n249 bypass, Toyosport 3" Downpipe/Decat, S3 Front brakes, Polyflexed Dogbone, S3dave adjustable tie bars

    Soon to be done: SAI delete, Install the toyosport FMIC i have kicking about in my living room

  6. #5
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    Thanks guys! One of the problems working on this project in Turkey is the language confusion. This answer addresses another problem we were having on the diagnostics which were showing a "height" (in translation) problem, which we were trying to deal with. Because we could see a small diaphragm on this fitting we guessed it might be something to do with it, but were not sure.

    Ian

 

 

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