"Oxygen sensor upper" fault. 1998 MK3 GTI

Discussion in '8-valve' started by MarkIII, Nov 23, 2012.

  1. mark25 Forum Junkie

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    Oct 28, 2003
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    Rotterdam
    To check it properly it really needs to be removed and bent in all angles to expose any splits between the ridges.
     
  2. MarkIII New Member

    Joined:
    Nov 17, 2012
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    Will do that when I replace the MAF then, thanks
     

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