I have a 2012 Jk 3.6 manual, it was intermittently throwing P0018 and P0300 codes. Both codes are now on consistently but my Jeep seems to run perfectly fine, no stalling or rough idle. I've read in threads elsewhere to change the oil, both camshaft position sensors and the crank position sensor, which I did, I cleared the codes and they came back on today (within 24 hours). I'm beyond frustrated and just read some more posts stating it could be due to the Jeep needing a software update. Has anyone else experienced this? If so how did you resolve the issue?