Hey all,

I have an 06 HCH with 250k miles on it. My hybrid battery is dying (started dying around 210k). It runs fine, and smooth, but the IMA doesn't always kick in, so acceleration can be challenging at times. The car failed inspection, due to battery and EGR valve. I just replaced the EGR valve about 2k miles ago, but my car recently started throwing a bunch of codes:

P0301
P2801
C3104
P2055
C1555

I have a bluetooth OBDII sensor (from amazon), and the torque app for android. My googling indicates that p0301 is a misfire on cylinder 1, which I strongly suspect is plugs or wires, as I haven't changed either of them in around 150k miles. However, I can't find any useful information on the other codes. Does anybody have any clues as to what the other's might be?

Thanks
-Matt