Exhaust Trouble

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Old 02-19-2002, 07:31 PM
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Default Exhaust Trouble

The exhaust on my 95 Audi 90 Sport is rather heavy when the car is idling. While driving the exhaust diminishes but I have a feeling it's not enough to pass an emissions test. What can be wrong?
Old 02-19-2002, 08:05 PM
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how many miles?
Old 02-19-2002, 08:15 PM
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Default Re: how many miles?

74,000
Old 02-20-2002, 01:19 AM
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check timing, maybe need a new cat
Old 02-20-2002, 01:39 AM
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Default How old are your 02 sensors? Spark plugs?

Grade of gas you put in?
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