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#1
04-17-2002, 12:33 PM
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Strong odor from exhaust.
I bought a 95 M3 not too long ago. Passed smog testing no problems here in Texas and seems to run fine. When I run the car a little hard, say up to red line going through a few gears, you can smell a bunch of sulphur odor from the catalytic converter if you have the windows down and come to a stop.
Is this normal or is this an indication of a rich condition? Possible 02 sensors etc. It's much more noticeable than say my TransAm after running it hard. Thanks, Scott 
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#2
05-05-2002, 08:23 PM
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Its possible the honeycomb material inside your cat is burning up, due to a not optimally running engine. Do a tuneup and replace the cat, prefereably with a high flow unit :sun:
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