MIL problem codes p1399 and p0302

First and foremost on a CRV misfire ADJUST the VALVES ASAP. I have seen so many guys try to fix the misfire and over look a basic concept, when the valves get tight, the engine misfires, I have even seen a CRV not even idle when it was cold, from this. I hope that the valves are not too far gone, because I have seen CRV engines burn valves when the valves are not adjusted at a regular intervals. So, do a compression test after the valve clearances are correct, to be sure.