E55 AMG Error Codes...where to start?
PO305 Cylinder 5 Misfire
PO301 Cylinder 1 Misfire
PO302 Cylinder 2 Misfire
PO300 Random/Multiple Cylinder Misfire
PO130 O2 Bank 1 Sensor
Once I fill the tank up I clear the codes and the car runs pretty good but I can still feel a little hesitation when I step on the gas. Maybe a little misfire but no error codes.
Even after I fill the tank the CEL will go out after I drive it for awhile.
I have read a few threads and maybe thinking a crank position sensor? The mechanic I had inspect the vehicle replaced the fuel pump since it was humming really bad. Also changed the fuel filter. He mentioned that the spark plugs had recently been changed as well.
Any suggestions?? I'm really wanting to get this out on the open road and unleash the beast.



