harsh

I have a 2007 c230 sport with around 120k. Check engine light came on the other day. Scanned it and got this code P0343 Camshaft Position Sensor 'A' Circuit High Input. Done some research haven't been able to find to many answers on this specific code. Think I just need to replace the sensor? Or possibly something electrical with the harness, etc? It starts and idles fine.

phister

replace the cam sensor, sometimes the voltage output spikes on it. Clear the code and see if it comes back on.