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Adaptive lambda control 1990

I have a 1990 740GL and I'm getting a code that reads Adaptive Lambda Control is too rich or too lean. Can someone explain this to me. I think it must be too rich because when it's idling black smoke comes from the exhaust.








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Adaptive lambda control 1990

Adaptive refers to altitude, you do not control it. If you are running rich you may have a vacuum leak - just don't ask us where the leak is.

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Keeping it running is better than buying new







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