Hey guys and gals My avenger got the SEL On, I checked the codes and P0301 came up I also have the same code pending. It says its misfiring but I does not sound like it is, I recently put in a pulgs and cables, and even a MSD ignition coil, cleared the codes but today they appeared again any ideas on what could be going on with this venge?

by the way I have the 420A engine (2.0L)

 

Recheck all the newly installed parts , just cause they are new doesn't guarentee they were installed correctly