Hi All, I installed Ford Racing Hot Rod Cams a couple months ago, along with new Motorcraft plugs, and new cam sprocket bolts. I've been through a couple tune revisions but every once in a while I'm getting a P0300 and/or P0316. They usually come up by checking with the X4, but a few times the Check Engine light comes on. Other times I'll have no codes whatsoever and no issues (after clearing). There has been no decrease in performance and all the datalogs I've taken look good per the tuner. I've always used 93 octane from reputable gas stations, so I don't think that's it. Any ideas on what could be causing this intermittent code? All connections good (VCT, COPs, plugs tight). Thanks.