I have codes p0463,pp0455,p0449,andp0401, what can i do to repair them?
get to a auto parts store, you need their help, cause your going to buy the parts from them! have them verify what the codes represent ! what sensors are needed to satisfy the trouble codes. so you know what to purchase . and their time is for free !!! you'll have the parts you need, hell, they may even put them in !!! ( tip the man ) ! I don't have your cars code book on me, or I'd tell ya what to do. BUT ! TO PASS EMISSIONS, replace your oxygen sensor ! replace both the AIR & FUEL FILTERS ! change your OIL & OIL FILTER ! TUNE-UP YOUR ENGINE, SPARK PLUGS, PLUG WIRES, AND AFTER THAT, HAVE THE DUDE @ THE PARTS STORE , PULL & REMOVE ALL TROUBLE CODES FROM ECM ! or they will keep popping up ! do you understand ??????????????? now, get busy !!!!!!!!!!!!!!!!!!