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Car Forum / Mercedes-Benz Cars / September 2006Mercedes 300E High hydrocarbon
I have a 1990 Mercedes 300E. Have 225000 km. I changed spark plugs, dist. cap. rotors, ignition wires, cleaned air filter, put in injector cleaner and drove the car for over 300 km. Checked vaccum lines best I could. Engine light does not come on. I took it for emmision test and it failed on hydro carbon. Limit is 59 ppm and the car has 114 ppm. Can any one help as to what else I should check? Thanks Sheel > I have a 1990 Mercedes 300E. Have 225000 km. I changed spark plugs, > dist. cap. rotors, ignition wires, cleaned air filter, put in injector [quoted text clipped - 3 lines] > ppm and the car has 114 ppm. Can any one help as to what else I should > check? I think this is measuring the oil leaking into the combustion chamber... You can try running mobile 1 instead of regular oil, if you aren't doing that yet. I have heard that reduces HC emissions (don't know for sure). Let us know... |
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