I have a 2008 pf with 212,000 miles and I’ve really never have any issues. About 3.5 years ago I had some issues with the camshaft position sensors so I switched out both bank 1 & 2 sensors and everything was fine. About 3 weeks ago I noticed a single shutter as I was driving and sure enough had a P0340 code about my bank 1 camshaft position sensor. I thought it was odd since I changed them a few years earlier but I went ahead and changed bank 1 again. Roughly a week after that I notice the single shutter again while I was driving and sure enough I have the p0340 code again. So now it has been going on about 3 weeks and I notice the shutter about once or twice a week. Clearly it’s not the sensor since I’ve already changed it so I’m looking for some help. I’ve been told it could be the wiring harness and I did watch a video of a guy who had continuous P0340 codes and it ended up being related to a faulty alternator. On a side note which is probably completely unrelated about 3-4 weeks ago I noticed a very slight hesitation when I stated my pf one morning and after work the battery was completely dead. Battery was old so I put in a new one that night and has been fine ever since. Any suggestions or advice is very much appricated!