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
- posted
17 years ago