I own a 1998 2.4L 4g64 galant and it keeps spitting out this code even after I searced it on the web and in my book. I replaced the front 02 sensor MAF sensor and tuneup,engine coolant temp sensor,Iac motor,etc distrib,plugs and wires cap and rotor,everything i COULD TRACE TO THAT EVEN THE ECU and no luck,no vaccum lines or exhaust leaks either. Its bugging the shit out of me and advice to what to do next. Thanks!