Join Date: Sep 2011
Location: Oshawa, Ontario, Canada, Earth
Feedback: 0 reviews
My 2008 jk started running very rough, it threw a few check engine codes including P0300 (multiple/random cylinder misfire) and P2305 (ignition coil B secondary circuit). I took a look at my 6 month old ignition pack and it had a deep crack all the way across it. I replaced it this morning and its still running rough, and im still getting those same 2 codes... ive cleared the codes and they just come right back. My plugs and wires are 6 months old. I was sure the cracked coil would have fixed this... Is it possible that it fried my PCM?
Any help would be much appreciated. I need to sort this out so i can drive to work.
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