Question about 2002 Chevrolet Blazer

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Cat converter - 2002 Chevrolet Blazer

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  • brianckelly Jun 05, 2010

    whats happening?????

  • brianckelly Jun 05, 2010

    whats happening?????

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1 Answer

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Hi,

Kindly mention the problem in Detail?

Thanks!!

Posted on Jun 05, 2010

  • 1 more comment 
  • brianckelly Jun 05, 2010

    how do i select size of aftermarkel cat converter? my current one is shot and oem not available in australia

  • brianckelly Jun 05, 2010

    do i size an aftermarket cat converter?

  • brianckelly Jun 05, 2010

    how do i size a cat converter

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3 Answers

My 2000 2.0 JETTA is failing inspection and the code pulling up is P0422 but I was told the Cat is in good shape, any suggestions?


code p 0422 refers to main cat converter, bank 1 ---efficiency below thresh hold ===causes cat converter,--- wiring -- heated oxygen sensor (HO2S) 2
heated oxygen sensors are the ones in the exhaust manifolds before the cat converters
they are wired and the wires are delicate and can be easily damaged
O2 sensors (O2s) are found after the cat converters and can determine the quality of the cat performance
At this point I would be looking at the HO2S replacement as that is what the code indicates --IF-- the cat is in proper working condition

Nov 27, 2016 | Volkswagen Jetta Cars & Trucks

1 Answer

1998 Ford Econoline has code p2099 what does it mean


code p 2099 refers to post cat converter fuel trim (FT) bank 2 --too rich===causes --catalytic converter
it also refers to engine coolant temperature (ECT) sensor --- circuit malfunction=== causes --- wiring-- ECT sensor
bump the cat converter with the heel of your hand and if it rattles replace the cat converter
if the cat converter is solid , replace the ECT

Sep 04, 2016 | 1998 Ford Econoline

2 Answers

What does code PO431 mean on 03 Kia XL. My check engine light is on. Auto zone said I needed to replace Catalytic Converter(s). Does anyone know how many Catalytic Converters are on it?


code p 0431 refers to warm up catalytic converter, bank 2--efficiency below threshold === causes ---cat converter---wiring---HO2S sensor 2
it should be a v6 engine as it has 2 banks , bank 2 is the one closest to the grill.
there should be 2 cat converters ( one for each bank)
from the suggested causes , I suspect that the HO2S sensor is not performing properly and is not providing the correct mixture to the cat converter to make it operate properly
if you bump the cat converter with the hand and it rattles , it will need replacing and autozone would be right
However I am always of the opinion that you should seek other advice from an accredited exhaust specialist shop and get a quote as cat converters are not cheap

Jun 24, 2016 | Kia Cars & Trucks

1 Answer

How many 02 sensor and how many wire each sensor


depending on the engine make
v8 and v6 have 2 oxygen sensors( O2S) , one after each cat converter with 2 wires and 2 heated oxygen sensors ( HO2S) in the exhaust manifold/ pipe before the cat converter with 4 wires each
6 cyl and 4 cyl engines have one oxygen sensor after that cat converter and one heated oxygen sensor before the cat converter

Mar 24, 2016 | Cars & Trucks

1 Answer

New exhaust no cst converters chanch sensors twice problem stay p0420


you will need a cat converter to make the system work properly
code p 0420 refers to cat converter system bank 1-efficiency below threshold===causes ---cat converter, ---wiring---HO2S 2 sensor
have you been replacing the correct sensor as they are different in operation

Sep 30, 2015 | 2009 Chevrolet Lumina SS

1 Answer

Anyone has a diagram or pictures from 1995 Mercury Villager showing the location of the two Oxygen sensors, and which one is Front and which one is Rear? Thanks in advance


oxygen sensor are located before the cat converter and after the cat converter. The unit before tha cat converter is normally in the exhaust manifold or in the exhaust before the cat _ it is a heated oxygen sensor (HO2S) the one after the cat converter is located either in the end of the cat or close to in in the exhaust pipe. Its defines as an oxygen sensor (O2S). If you have 2 cat converters (V engines) there will be two of each

Jan 22, 2015 | Mercury Cars & Trucks

1 Answer

Does pouring alcohol in the gas tank turn off the trouble code for a 2000 Cadillac deville with the code of p0420.


. NO it will not . code po420 refers to cat converter system , bank 1--efficiency below threshold===causes cat converter---wiring--HO2S 2

Have the cat converter checked for failure and replace if necessary. Check the operation of the heated o2 sensor before that cat converter.

Jul 28, 2014 | Cars & Trucks

1 Answer

O2 sensor?


O2 sensors are always after the cat converter and HO2S sensors are always before the cat converter.
p0135 refers to heated oxygen sensor(HO2S) 1 bank 1-heater control--circuit malfunction
If it is a straight 6 cylinder engine with 2 cat converters it will be the sensor before the cat converter that connects to the manifold from pistons 1.2.3
If it is a V6 it will be the sensor that is in front of the cat converter that connects to the rear bank pistons 1.2.3. Use the special socket when removing/replacing the sensors to prevent wiring damage

Apr 23, 2014 | 2004 Chevrolet Silverado 2500HD

1 Answer

Trying to replace cat converter w/a universal cat converter


Just buy the correct Vehicle Specific Converter
from Walker Exhaust

In California the answer is no,has to meet their
CAFE standards

Too much fabrication to install a part that doesn't
fit & your working with 409 stainless ,so again ,no

Mar 22, 2013 | 1998 Mercury Mystique

1 Answer

2002 toyota rav 4 / code po420 whats wrong ?


You have a cat converter ie eficiency code. Most shops are willing to sell you a cat converter and make a quick buck. However you can save some major money if you can find out what is wrong. A cat converter doesn't just go bad by itself something causes it to fail. Most likely a bad oxygen sensor or a dirty mass air flow sensor. I would replace the oxygen sensor in front before I replace converter. Reset check engine light and see if light comes back on. If it stays off you just save about 600 dollars. Oxygen sensors cause cat converters to go bad. So fix the cause first, then if you have to replace converter.

Oct 28, 2010 | 2002 Toyota RAV4

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