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ricksgem ricksgem is offline
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Join Date: Jan 2006
Posts: 18
94 911 Turbo Bogging down under boost, black smoke

I just replaced a rebuilt turbocharger and she ran fine for a week, then started bogging down and choking under boost, with a cloud of black smoke. Fine if not under boost, but then what fun is that? It is getting worse each day.

I assume the black smoke is uncombusted fuel and that, even though I can hear the turbo spinning, the pressure is not building. My boost gauge is reading 0.0, could this be some kind of air leak or some other kind of problem?

Any help or ideas would be great!

Old 03-15-2008, 01:56 PM
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