Ive been getting the p0420 code since i bought the car and i think if i do have cat it is not fuctionong right or clogged. but i just recently got a p0301 code and im worried since it is a missfire. The car has been running kinda sluggish when i stomp the gas and im wondering what the problem is from. the turbo shoots up but my car feels like it wont catch up. nuthing wrong with my clutch it has less than 5k and i havent abused but i also have a streetlite flywheel but it weighs like i think little over 12lbs but ive never gotten a p0301 until now. I dont think the flywheel is the culprit. Also my car has been drinkin the gas since the light came on so im wondering if there is anything major wrong with it since i just had my trannsmission rebuilt and a new center diff. I also now it could a vacum leak, spark plugs, ignition wires, injectors, and high or low fuel pressure, but what could be wrong with the injectors or what does it mean by high or low fuel pressure?, i wished i had an access port that would really help right now. but i dont so i have to rely on you all to help so if any one could be so kind and offer some good advice so i can fix my problem would be very appreciated! thanks
BJ