92 500sl new to me does`nt pass smog. - Mercedes-Benz Forum

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post #1 of 2 (permalink) Old 01-09-2011, 08:04 AM Thread Starter
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Question 92 500sl new to me does`nt pass smog.

stumble/misfire off idle/light throttle. At freeway speeds seems kinda ok.
smog is a 2 speed idle test CA. HC at 2500rpm 22(PPM) at idle 345(PPM), CO at 2500rpm 0.00 at idle 2.53. The guy i bought the car from said some tech? adjusted the base idle up?/ or base fuel mixture?. Any ideas apart from checking the tune up?
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post #2 of 2 (permalink) Old 01-09-2011, 05:11 PM
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