98 accord lx 4cyl. 91000 miles. Started throwing error code p0302, cyl 2 misfiring. o2 sensor, catalytic converter replaced at honda dealership. 2 months later throwing multitudes of codes. Replaced plugs, wires, ran injector cleaner, etc. Yesterday a 50 mile trip used 1/2 tank of gas. Getting a little blue smoke in exhaust. Dist. cap and rotor appear to be ok. The strange thing is, this only happens after car is warm and driven for 15-20 miles. If the car sits and cools down it runs fine. After warm it misses really bad, and will stall.

I'm pretty new to Honda's, so any insight would be appreciated.