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vcds output tests help?

Discussion in 'A3/S3 Forum (8L Chassis)' started by Vwdan80, Feb 19, 2013.

  1. Vwdan80

    Vwdan80 Member

    Nov 28, 2011
    Likes Received:
    hi all, i was messing around with vcds and was doing the output tests in the engine part on my s3 and on the first test it is EVAP purge valve (N80). when i selected this i could hear a loud hissing noise from under the inlet manifold, so i'm not too sure if this is normal or if there could be a vac leak/problem??

    The car runs ok and there isnt any fault codes at all,
    any help would be mucho appreciated

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