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How many catalytic converters does a 2000 cadillac seville have/need?

I need to know if the converter after the down stream O2 sensor is important and if its gone will it send a code? The car has one converter before the down stream O2 sensor.

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6ya6ya
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SOURCE: 1997 chevy blazer with 4.3 liter v6

could be valve guides r worn n letting oil drain into cylinders

Posted on Jun 14, 2008

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justuscc
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SOURCE: Please Help... p0404 and p0137 Error Codes (1999 Saturn SL1)

yes egr valve is a common thing on this saturn. very pricy and yes you need the rear o2 sensor good luck i have a used egr if interested off a sl2

Posted on Sep 29, 2008

emissionwiz
  • 76109 Answers

SOURCE: My 2002 Lancer's check engine

Aftermarket converters can cause catalytic converter monitor issues, these are not O2 sensors, they are catalytic converter efficiency monitors, I know they look like a O2 sensor but they are very different in how they work, what are the codes you are getting.

Posted on Nov 05, 2008

  • 2 Answers

SOURCE: replacing catalytic converter on a 2002 Honda Odyssey

i have 2002 honda odyssey
engine and tcs light come on after driving 10-15 miles with code p0131, p0132,p0136,p0137

please help me fix my car problem

Posted on Sep 09, 2009

  • 318 Answers

SOURCE: P0420 and P0430

The AF sensors are uupstream and the O2 down stream. The car' s computer tests them and it is saying your cats are bad. If you have a scan tool you could look at the data and see what the sensors are seeing. The Af sensors are the ones that control the fuel ratio in the car while the O2's just watch. AF's would be the one to change but there is no garuatee that the codes won't come back.

Posted on Sep 25, 2009

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1 Answer

2000 Dodge Dakota Removed catalytic converter and replaced both up and down stream O2 sensors.Losing low end power and heavy spark nock or pre ignition fire? How to fix with out replacing converter?


REPLACE THE CONVERTER,ITS THE ONLY WAY!plus without it,you will never pass emissions,why would you replace the parts that work because of the catalytic converter and remove the converter,your thinking is warped

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How many oxygen sensors are there on a 1996 ford explorer 8 cyl., 4.0 eng.


The answer depends on the type of exhaust system you have. You will have either 3 or 4 total O2 sensors on your V8. If you have single exhaust with a single catalytic converter then you will have 3 O2 sensors (2 upstream sensors & one downstream sensor - "up or down stream" meaning before of after the catalytic converter). If you have either dual exhaust and/or two catalytic converters then you have 4 O2 sensors (2 upstream & 2 downstream). If you have an MIL light (malfunction indicator light, or "check engine light") the code will indicate "front bank / bank one", which is one of the 2 upstream O2's before the catalytic converter(s), or "rear bank / bank two", which is one of the O2's after the catalytic converter(s).

Apr 22, 2012 | 1996 Ford Explorer

1 Answer

Downstream oxygen sensor location


Down stream o2 is always located after the catalytic converter,,Upstream o2 are before..The down stream o2 reads the effienciency of the converter

Sep 12, 2011 | 2006 Chrysler Town & Country

1 Answer

Where are the o2 sensors located on 2004 dodge durango and how many are there?


I believe you may have three (3) O2 sensor, (2) of the sensor is on ether side of the exhaust down pipe and some times called up stream O2 sensor, the third O2 sensor know to some as the down stream O2 and is after the Catalytic converter.
The up stream O2 monitors the left and right side banks and sends signals to the ECM to make the adjustments to the injectors to keep the proper air/fuel ratio.
The down stream O2 monitors the catalytic converter and sends signal to the ECM if the catalytic converter has gone bad.
Good luck and hope this helps. If you get it scanned at Auto Zone, they should be able to let you know which O2 has gone bad so as to not change all three. You could always check the wire harness to the down stream O2 for corrosion.

Jan 29, 2011 | Dodge Durango Cars & Trucks

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I need to know how many 02 sensors are on a 1997 dodge intrepid.


  • Up-stream sensor (located before catalytic converter)
  • Left up-stream sensor (located before catalytic converter)
  • Left down-stream sensor (located after catalytic converter)
  • Right up-stream sensor (located before catalytic converter)
  • Right down-stream sensor (located after catalytic converter)
4 sensors total.

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Where is the oxygen sensor on 1997 ford taurus wagon 3.0


Single or double overhead cam type engine? In any case, these are the locations listed below.
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  • Left up-stream sensor (located before catalytic converter)
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  • Right up-stream sensor (located before catalytic converter)
  • Right down-stream sensor (located after catalytic converter)

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Im confused my car is a toyota camry 6cyl not 4cyl and some say it has 4 o2 sensors and others say it has 2, hum, wich is it???? please help and also is there a site where it shows me like a diagram as to...


I have no diagram,but there is what they call upstream,and down stream locations.Upstream,is above the cat-converter,the down stream is below the cat-converter.This would be per-side.You have a left,and a right exhaust manifold.The exhaust pipes run from each manifold(left and right)to the catalytic converters.So you would have to have on the left side a up stream o2 sensor,above the catalytic converter.and a down stream o2 sensor,below the catalytic converter.this would also be on the right side also,this would be the total of four(4) o2 sensors.I hope this is helpful.

Oct 16, 2009 | 1998 Toyota Camry

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Location of oxygen sensor


Under the truck, driver side exhaust pipe, there are 2, 1 is before the catalytic converter, the other is after. They screw into the side of the exhaust pipe.

May 29, 2009 | 2004 Dodge Ram 1500

1 Answer

Can't find my oxygen sensor location


1 in front of catalytic converter and 1 after

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