gixer2000
Retrofit or Bust
I was having this issue on my 07. Not sure how different the charging system is but the 3 wire harness that runs to the alternator was where my issue was. The pins were loose in the plug and it wasn't sending the alt output power to the pcm. It took like a month to find it because it was intermittent but it was throwing a P0625. I'm also 2 alternator deep and once I replaced that plug all is good.