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How to reset Heated02,o2,Cat,Evap readings? - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: 99 safari egr and o2 sensors won,t show ready. i

look for this pdf informations you will find what you are looking for

Posted on Oct 16, 2013

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SOURCE: Can not pass emmissions because of Heated02, 02,Cat,Evap codes?

have a smoke test done you have a small evap leak can be anywhere in the fuel connections but a smoke test will help
find it as long as he's a good mechanic

Posted on Apr 17, 2015

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Can not pass emmissions because of Heated02, 02,Cat,Evap codes?

have a smoke test done you have a small evap leak can be anywhere in the fuel connections but a smoke test will help
find it as long as he's a good mechanic

Apr 16, 2015 | 2010 Ford Escape Limited

1 Answer

2010 Kia Forte ex die on highway will not start said engine said nothing does anyone no what this means cat evap Oz's hrt egr

Instead of Oz's hrt egr, the computer is referring to the O2 heater, and your Catalytic converter is Overheating because of the resulting rich mixture, this triggers an automatic shutdown or limp home mode for your engine. You need to get your trouble codes read, so you know which O2 sensor is bad.

Jan 28, 2015 | 2010 Kia Forte

1 Answer

How do I pass vehicle inspection O2 Cat. Evap for a 2004 Chevrolet Cavelier

What was the code given..
02 will mostly sensors..
Cat code 420 will need new cat
And evap codes can b a couple different parts..need exact codes to tell what all is needed for fix

Sep 22, 2014 | 2004 Chevrolet Cavalier

1 Answer

Evap and catalyst monitors not resetting


Nov 15, 2013 | Cars & Trucks

1 Answer

O2 sensors keep failing and a evap leak code i put new gas cap did not cgehan

Are you sure it's 02 sensors? Just because code says 02 sensors doesn't necessarily mean they're bad. Bad 02 sensor code can also indicate bad cat. converter. If 02 sensors read exact same reading before and after converter they will trigger OBC to "sensor fault" - they should be reading 2 different readings. (Pre CAT/POST cat) I'd suggest replacing cat converter before replacing sensors.

Mar 14, 2011 | 1999 Toyota Camry Solara

1 Answer

Nissan fronteir codes are P0420, P0430 what has failed

po420 and430 is telling that the catalyst converters are no good both, most of the time bad o2 sensors maake computer think cat is no good, the way it tests is if o2 sensor reading before cat is about the same as the one after cat computer asumes cat is not bruning exhaust good , iwould replace o2 sensors reset check engine light and go from there, that might be the problem,if you were to replace cat o2s should be done at that time,so do o2s first,good luck.

Nov 05, 2009 | 2003 Nissan Frontier Crew Cab

2 Answers

Catalyst system efficiency below threshhold bank 2

before replacing cat converter replace o2 sensors, they go bad and give a false reading that cat efficiency is below threshold ,meaning converter is no good , i would replace o2 sensors and reset engine light and go from there,the o2 s are normaly the problem, unless you hear cat rattling, well good luck,

Oct 26, 2009 | 2000 Suzuki Grand Vitara

1 Answer

1999 Mazda Protege ES/1.8L Manual Trans

cat is probably gone if it is the stock one, but i also know the mass air flow sensor could be the problem, and its also the cheaper of the two things you could do (MAS or pre-cat). you can try cleaning it with the spray stuff they sell at any local auto store. readings online say this car running rich will kill the catalizer in two weeks so you might want to keep that in mind.

Sep 14, 2008 | 2000 Mazda Protege

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