MY car a C240 1998 started with a missfire and when put on Carsoft read Ignition coil or electrical connections to it. I replaced it,then changed coils from 1 side of engine to other, then tested to see if coils were sparking each time erasing fault codes still no joy. I then replaced the oxygen sensor which only read 10mv at 800rpm with 1 fron Eurocars this only reads 200mv against up to 700mv r/h side. The left exhaust runs cooler than right so it must be a problem on that side of the engine. The MAF and all injectors read OK power to injectors with ignition on. Has anybody any ideas please
Thanks Ron
Sorry put wrong code down should be 0305
Thanks Ron
Sorry put wrong code down should be 0305
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