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Re: Check Engine
Posted by Richard Klein (more from Richard Klein) on Sun, 7 Apr 2002 19:03:57
In Reply to: , Kok Chen, Sat, 17 Dec 1988 12:00:00

Black smoke means it's running extremely rich, getting too much fuel. That
could be caused by a bad airflow meter or oxygen sensor causing the computer
to think the engine is getting more air then it really is and add more fuel
to compensate. The oxygen sensor was subjected steam and/or coolant and/or
burnt oil when the turbo went, which could explain it's failure. A bad fuel
pressure regulator could also make the engine run very rich, but I think the
oxygen sensor is the best guess.





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