I need help..

under light accelleration, and between 1500-2000 rpm, the engine will miss fire quite badly. I pulled the codes the ecu was throwing and there was 22 (VTEC pressure switch) and 41 (Primary O2 sensor heater), now i dont think that these have any thing to do with the miss firing, but they could.

Any help is greatly appreciated

 

How does it run above and below that RPM?

How does it run at WOT?

When was the last time you did a tune-up?

 

perhaps switching out the wires and plugs to rule that out before moving to the O2/cat