Re: 2003 santa fe with engine code p0431 is related to...
Go to your local autozone store and have them check the the code and tell you what it means. They do this for free in hopes you'll buy the parts from them.
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p0431 is described as "warm up catalyst efficiency below threshold (bank 2)" This code is in the exhaust system air injection section of the trouble codes. Possible it relates to an oxygen sensor reading.
I am a mechanic ..most people ask questions about these foreign hyundai motors ..below is an example of engines that basically if you ask about a Hyundai Xg 350 ,xg300 ..well allow me to hammer 90% of your questions in case you want to grab another motor ..these motors listed will work on 90% of all hyundai products ...Look at the starter sizes ,,all the same for the selected models ..then look at the motor sizes ..This will help you in solving some problems most do not give the specific questioning 100% NEW REPLACEMENT STARTER FOR STARTER
HYUNDAI 2001 SANTA FE 2.7L ENGINE 2002 SANTA FE 2.7L ENGINE 2003 SANTA FE 2.7L ENGINE 2004 SANTA FE 2.7L ENGINE 2005 SANTA FE 2.7L ENGINE 2006 SANTA FE 2.7L ENGINE
2003 SANTA FE 3.5L ENGINE 2004 SANTA FE 3.5L ENGINE 2005 SANTA FE 3.5L ENGINE 2006 SANTA FE 3.5L ENGINE
They are three separate issues. Code 431 involves the O2 sensors and the catalytic converter, code 446 is for the evap vent control for the gas tank, and code 715 is for the input shaft speed sensor in the transaxle. The engine temp and other factors would need to be checked for code 431, and the sensors would need to be tested for the other two codes.
THAT CODE IS FOR THE BANK 2 OR FRONT CATALITIC CONVERTER ON THE VAN. YOU CAN HAVE THE DEALER REPLACE IT OR A MUFFLER SHOP CAN DO IT. THE CAT IS A PART OF THE FRONT EXHAUST MANIFOLD AND WILL NOT BE CHEEP TO REPLACE.
hi P0431 :- (warm up catalytic converter bank 2 - efficiency below threshold ) test the catalytic converter it locate in exhaust gas pipe test the heated oxygen sensor in exhaust gas pipe too near the engine P0446 :- (evaporative emission (EVAP) system , vent control , circuit malfunction ) test wiring , EVAP canister purge valve , ECM engine control module just ask for more abut DTC
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