Hey guys just need some help here diagnosing some issues I have with my k20z1 swapped em2, currently stock motor, stock ecu, action stage 2 clutch. And just a bunch of bolt ons in the suspension department. Currently having issues with a misfire code that I can’t seem to shake, haven’t had the chance to run a compression test but I wanted to have an idea of what some of the issues could be. Misfire on cycling we 1 and I have bad 02 sensors, which could be causing the issue as the car is running rich and could just be fowling plugs regardless, I just don’t know what would cause this other then bad plugs? Could bent valves cause this issue? The car runs and drives good with no noticeable misfire. Very smooth running engine and makes very little valve train noise. Just looking for a list of what to go thru before I pull the engine out of the car.