W203 error P366 and P200b
A year ago on a W203, 2003-2007 C180, Compressor, the cam sensors, the sensor between the spark plugs and on the exhaust side was replaced after numerous engine light errors. All tested fine and all errors were taken care of. A year later 2 of the errors returned, namely P366 cam sensor bank1 and P200b. The engine on startup has a rough idle and then smooths out. Although the engine runs smoothly on the road it tends to run rich on the fuel mixture. Could the cam sensor on the exhaust side be faulty again or could there be other related problems?









