02 Protege 5

I keep getting the CEL code for Cylinder 2 misfire. I changed the plug, swapped the coils with each other and back, and also ran seafoam and fuel injector cleaner. The code will not go away, I cleared it too.

I just changed the water pump a few weeks ago, this car is driving me crazy now.

It has good compression and vacuum.

So what to do next, clean the fuel injector, clean the EGR, clean the O2 sensors? Im at a real loss. You guys are my last hope, if not I have to take a day off and drop it off and the mazda dealer.

Thanks