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#1
12-01-2005, 02:18 PM
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Smoke When Cold Only? M116
Hi all,
My buddy's 1983 380SEL (w126, 124k miles) is a bit smokey on start-up. After warming up a bit (I'd say right about the time it gets into closed-loop...if I can remember my lamda tutorial  ) smoke goes away entirely, not a whisp. Runs just fine cold, idle doesn't stumble and starts w/o hesitation. Uses no oil, no oil in water/compression in cooling system.Does this sound like an O2 sensor problem? Possibly a smog pump issue? Do they function together or off different temp sensors? I remember having his dash apart not too long ago and there not being a bulb in the O2 sensor dummy light hole. O2 sensor looks quite new, though. Any help? Thanks! -M-
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Currently: 1972 350SL Euro 4spd 1973 BMW R75/5 1981 BMW R80GS 1995 FZJ80 with OM606 Conversion In Progress Last edited by 350SL4spd; 12-02-2005 at 12:17 PM. 
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