Currently I'm misfiring on all 4 cylinders plus I'm getting the random misfire code. CEL is on and flashes at most stops, car feels fine to me. After I reset the ecu I pull the same codes.

So far I've:
Changed spark plugs
Cleaned throttle body
Map whack
Injector cleaner

I've read several threads like this, but was wondering if a clogged, burn up cat can cause a random misfire.

I'd rather try the cat if it could prevent me from buying coil packs.

 

Most random misfires are cured with new injectors. Cleaning them alone does not always solve the problem.

 

Iv'e had a similer problem gradualy become apperent over the last 4 or 5 months. The car gave me a misfire code once just for #1 and never again since I reset the ECU, however it still misses at idle and troughout the rpm's. It pops or sputters when I lift off the throttle gradualy after getting on it. The car overal doesn't feel down on power and it accelerates smoothly mostly, allthough once in a wile it sounds like its breaking up some when it hits Vtec. I've done all the above as well. I do have a test pipe however. I don't think this is an issue though because I have been using it a year prevously with no issue so it wouldn't make sense that this would be a problem. The plugs seem to be even burning and look good so I don't think it is fouling from lack of spark. I'm leaning toward fuel delivery but don't know where to start other then new fuel injectors. Seems crazy to me to spend however much$$$ on new Enjectors if this isn't the problem. I don't know what a bad injector looks like either. Does anyone have any other recomendations? can I remove the injectors easily enough and have them tested or is there some other things that I should be checking first? thanks for your ideas!