Chrysler Repair Questions? Ask a Mechanic for Answers ASAP
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Misfire codes on cylinders 2,4,and 6 indicate a timing problem. Due to the misfire codes only being set on bank 2, bank 2 is the left bank.
P0300 is a random misfire code.
P0420 catalytic converter efficiency low. This code should be diagnosed after the misfire is fixed. Misfires can set a false po420 code to set.
For your next step i would recommend performing a compression check on the engine to confirm that the timing is off. bank 2 compression readings cylinders 2,4,and 6 will be low compared to bank 1 cylinders 1,3,5
Or you can remove the front timing cover and verify the timing marks are correct.