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Old 11-14-2002, 04:58 PM
Posts: n/a
mixture control 119 engine cis-e 1990 sl500

I have a lean running 119 cis-e 1990 500SL. At low speeds off of idle and under load it backfires through the intake constantly until I hit 3500 rpm under load. Car has new pumps and filters.Problem did not exist prior to filter and pump replacement. Can the mixture be adjusted? If so, how?
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