Question about 1998 Volkswagen Golf

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Black smoke coming out of exhaust of a 05 VW Golf S SDi

I have black smoke billowing out of the exhaust when I floor the eccelarator. The car has been to a VW garage, and after 5 hours trying to diagnose the problem, they THINK it may be a slightly worn cam shaft but can't gaurantee it. Has anyone out there had the same problem?

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Black smoke means to much fuel/running rich, I would think emissions problem, not a cam shaft problem, and check all the small/easy/cheap stuff first.check for computer codes.

Posted on Jun 26, 2012

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Sounds like a bad MAP sensor. This will cause the same problems. Possibly an oxygen sensor not switching properly also.

Posted on May 28, 2009

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