Well I have never seen a p1300 misfire code in a honda or any other car for that matter. I guess 5 years of automotive training, 85% on my trade exam and 10 years of general auto servive and nurmours automotive training course can be wrong. If I get time I will have to check the data base at work and see. It were well maybe but I know that misfre codes are
P0300, P0301 throught P0308 etc. I have been wrong before.