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Emissions Light

Discussion in 'A6/S6/Allroad forum (C5 Chassis)' started by vpg_ii, Jan 2, 2005.

  1. vpg_ii
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    vpg_ii New Member

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    [Jan 2, 2005]
    I have a 99 2.8L Quattro with 101,000 miles. My emission check light came on the other day. At the same time, and probably why it illuminated, the engine began misfiring (engines shakes, running rough, etc.). The mechanic hooked it up to the computer and did all checks on emissions yet could not find a single problem. Audi dealership said it could also be due to spark plugs, etc. so I had the mechanic change the spark plugs as they were going bad and the fuel filter since it was dirty. The light remains on and still the same rough engine problem. I am thinking of a new timing belt and then spark plug wires but those are quite expensive (250 for the wires).

    Any thoughts if this is the problem or should I do something else? Thanks. /ubbthreads/images/graemlins/smile_smoking.gif
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