Ok here's the codes that keep coming up,after they have been cleared..


P0420
P0430
P0443


THIS IS ON A 2003 CHEVROLET SUBURBAN 1500 WITH A 5.3L 4X4 WITH TOW PACKAGE..ITS A LS BUT FULLY LOADED..


I JUST BOUGHT IT USED ABOUT 2 MONTHS AGO.. I UNDERSTAND IT MAY BE THE CATS, RESINATORS, 02 SENCERS, AND OR THE CANISTER PURGE SOLENOID..


I LIVE IN OKLAHOMA.. WE HAVE NO EMISSION AND/OR INSPECTION HERE.. I HAVE BEEN TOLD TO CHECK THE RESINATORS AND IF CLOGGED REMOVE THEM.. AND TO HAVE THE CATTS BURNED OR RODDED OUT AND REINSTALLED.. AND TO REPLACE THE CANISTER PURGE SOLENOID..


HERES WHAT IT IS DOING.. OTHER THAN ROUGH IDOL WHEN STARTED IN COLD WEATHER.. 30* OR SO.. THE CHECK ENGINE LIGHT STAYS ON.. IT DOES NOT CUT OUT AT ALL WHILE RUNNING ONCE UP TO TEMP.. RUNS FINE DAY IN AND DAY OUT..OTHER THAN ROUGHT START WHEN COLD.. THE LOCAL MUFFLER SHOP TOLD ME I HAD A 50/50 SHOT THAT THE COMPUTER WOULD COMPENSATE FOR BURNING OUT THE CATTS.. AND THAT MY CODE MAY OR MAY NOT RESET.. ORILEYS AUTO PARTS TELLS ME..THAT THEY KNOW PEOPLE THAT HAVE THE CATTS BURNED OUT ALL THE TIME AND THAT IT WILL LET THE CODE RESET.. ALS THEY INFORMED ME THAT I NEEDED THE CANESTER PURGE SOLENOID TO RESET THE OTHER CODE.. WITCH THEY WOULD DO AS LOGE AS I PUSH THE RESET BUTTON.. I'VE HAD PROBLOM AFER PROBLOM WHTH THIS VEH. PLEASE READ MY OTHER POSTS FOR DETAILS.. IM STARTING TO THINK MY CPU MAY BE BAD.. BUT THEN AGAIN I MAY JUST HAVE A BUNCH OF INDEPENDANT PROBLOMS THAT NEED TO BE FIXED.. I WILL REPLACE THE CATS IF NESASSERY..I'M JUST NOT TO SURE HOW TO TELL THAT IT IS NOT TO 02 SENCERS.. AR ANYTHING ELCE FOR THAT MATTER.. I REALY NEED HELP!!.. TO RIDE SEEMS TO RUN FINE BUT I HAVE MUTI PROBLOMS SO FAR.. I TOOK IT TO THE DEALER TO HAVE IT CHECKED FOR ANY ACTIVE RECALLS.. THEY TYPED IN THE VIN.. AND TOLD ME THAT THERE WERE NO ACTIVE RECALLS.. BUT I HAVE BEEN TOLD THEY HAVE TO PLUG IT INTO THERE COMPUTER TO REALY CHECK.. SO AGAIN NOT TO SURE WHAT TO DO..
HERES A LIST OF MY OTHER PROBLOMS ON THIS RIDE..
ONSTAR REAR VIEW MIRROR RESETS OR SHORTS OUT,ON AND OFF AFTER 20 MINUTES OR SO.. PASSER SIDE TEMP CONTROL MODULE IS STUCK.. I HAVE A NEW ONE I JUST NEED TO KNOW WITCH ONE IT IS TO REPLACE.. I THINK THERE IS FOUR ON THIS SYSTEM I JUST HOPE I DONT HAVE TO REMOVE THE DASH TO REPLACE IT..SO IF ANYONE CAN TELL ME WERE THE LOCATION IS WOULD BE GREATLY APRISEATED..


THE INSTERMENT CLUSTER DOES NOT LIGHT UP THE 4X4 LIGHT,WHEN I AM IN 4 WHEEL DRIVE.. SO I PULLED IT,THINKING THAT THE BULB WAS BURNED OUT..ONLY TO FIND OUT THAT IT THE CLUSTER WAY A LED CLUSTER..WHAT I THOUGHT WAS THE 4X4 LIGHT WAS A PIC OF TWO AXELS WITH THE FRONT WHEELS TURNED.. EITHER WAY IT DID NOT LIGHT UP. MAYBE IT WA A ABS LIGHT .. NOT SURE.. SENCE I PUT IT BACK IN .. MY LEFT BLINKER AND CRUSE CONTROL LIGHT WILL NOT LIGHT UP..BUT IS STILL FUNCTIONABLE..


THE HORN ONLY WORKS WHILE THE VEH. IS TURNED OFF.. THE ALARM HORN WORKS AND WHEN THE KEY IS OUT THE HORN WILL WORK.. BUT WHILE DRIVING.. IT WIL NOT FUNTION..


BOTH OF MY REAR WINDOW DEFROST WIRES HAVE COME UNDONE..UNGLUED OR OVER HEATED AND CAME UN GLUED.. CAN IT BE REGLUED OR WILL I HAVE TO REPLACE THE REAR WINDOW.?


MY TWO FRONT SEAT WARMERS LIGHTS WILL COME ON FOR 10 SECONDS OR SO.. THEN GO OFF..


MY FRONT DRIVERS SEAT IS ELECTRIC AND THE UPPER SEAT FORWARD AND BACK IS REVERCED..SO BACK IS FORWARD AND VICE VERSA.. SO KNOWING ALL THIS, HOW WOULD GO ABOUT STARTING TO TRY AND FIX ANY OF THESE PROBLOMS?.. I can fix most problems myself.. I just need to know were to start..
any and all info would be most greatly appreciated.. thank you for reading my posts..

 

Wow, I hope you got this vehicle free. Seriously I would start with the seat movement being backwards. It sounds like someone has hooked up the switch backwards.

 

I know right.. lol yes that sounds like a good place to start.. thank you for the advice.. if anyone else had any ideas on how to fix any of the other probloms.. any help would be very helpful..