2003 Chevrolet S-10 "code p0420" Questions

...A CODE AND IT SAID P0113 AND P0420 AND THE GUY TOLD US TO CONTACT SOMEONE TO FIND OUT WHAT THIS MEANS. COULD YOU HELP WITH THIS? P0113= intake air temperature too high P0420= Catalyst system too ...

p0420 code on my 2003 chevy s10 please go to the provide link for diagnosis of this code,but the bottom line here is the catalytic converter may be worn out http://www.p0420.com/ Hello and welcome. ...

...P0420 code triggers the Check Engine Light if the readings of the two sensors are similar. This is indicative of (among other things) a converter that is not working as efficiently as it should be ...

...code P0420 may mean that one or more of the following has happened: Leaded fuel was used where unleaded was called for An oxygen sensor is not reading (functioning) properly The engine coolant ...

...Code P0420 mean?? I have a 2001 chevy S-10 and its time to get emissions again and the service engine light is on ofcourse!! Im getting Code P0420 just wondering if anyone has had this issue before ...

my s-10 has service engine codes p o 101 and p o my s-10 has service engine codes p o 101 and p o 420 do you know what they are? p0101 is Mass air flow or volume air flow circuit, range or performance

p0420 code on my 2003 chevy s10 CATALYST SYSTEM LOW EFFICIENCY ,MEANING THE CAT MONITOR SENSOR WAS NOT SENDING THE CORRECT SIGNAL TO THE ECM MOST LIKELY CAUSE IS A FAULTY CAT MONITOR SENSOR OR FAULTY ...

...P0420, Catalyst System Efficiency Below Threshold, can be set by a poor connection at the PCM or a damaged wiring harness. Please rate this soluton as FixYa if found useful. Thanks Rylee the codes ...

...p0420 code and its been running rough. i know the cats good.if its not an o2 sensor could it just be a tune up issue The Cat is good,not if it is 12 years old Only a select few last 14 years O2 ...