been havin a misfire for about a month. not just misfiring. low power on acceleration. and hard time shifting practicly gotta get off the gas and get back on to make it shift. could this be from a bad cat converter ? i washed the engine bout a month ago not running but idk if that would have messed up the cats. new plugs nd wires new fuel and air filters too. 92k miles throwin a code p0353 primary secondary circut misfire