My friend has an 05 hemi magnum running poorly. I have not had a chance to drive it yet but he described it as a misfire. I was able to pull these codes.
P1521/ "not sure what this is"
P0300/ multiple Cyl. misfire
P0355/ crank Pos. sensor Circ.
P3015/crank Pos. sys. variation not learned
I'm guessing the crank position sensor may be bad but I am unsure if that's the problem or if there may be other problems.
Any help or advice would be greatly appreciated.