Ive noticed lately that when my car is going into vtec it backfires or misfires im not sure what it is. i have no clue why its doing it. but it is extremely loud. Kind of sounds like a 2 step..lol could it be that the car is too cold for vtec? its 38 degree's here. bad plugs or wires? im also running extremely rich so i dont think im detonating. help me out guys.