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Oxygen sensors How many oxygen sensors does a 1998 Cadillac STS have?

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If you have the northstar you have 4  O2 sensors.  one in each exhaust header.  one before the cat converter & one after the converter

Posted on Feb 01, 2009

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HOW MANY OXYGEN SENSORS ARE THERE ON A 2006 CADILLAC STS4


Is this a V8 or V8 If it is a V6 it has one, if it is V8 it has 2, the other sensors are for the monitoring of the catalytic converter efficiency. If I had the code and exact engine I could be of more help.

Sep 21, 2016 | 2006 Cadillac STS

1 Answer

I have this code P2096 on a 2005 Cadillac sts (6cylinder) I have replaced both catalytic converters and oxygen sensors and the light will not go off, thus will not pass Pennsylvania inspection! HELP -


Trouble Code: P2096

Downstream Fuel System 1/2 Lean
Possible Causes:


Exhaust leakEngine mechanical problemO2 Sensor has failedO2 Sensor signal circuit or return circuit problemFuel contamination

Oct 01, 2014 | 2005 Cadillac STS

1 Answer

What is the part number for 02 oxygen sensor bank 1 sensor 3 on 1999 sts cadillac


OEM Part Number(s): 19178928, 25161131, 25312197 replacements: (1A AUTO)1AEOS00163 or Walker WKEOS00092-02

Bank 1 Sensor 3 ,Sensor number #3 is downstream (after) the Catalytic Converter. There are also 2 upstream sensors Left or Front
#1 and Right or Rear #2 upstream sensors.

Jul 03, 2014 | 2001 Cadillac DeVille

1 Answer

Oxygen sensors


some cars have 2 and the ford has 4 so you would have to look at it to see or call a parts dept and ask

Mar 11, 2014 | 2005 Cadillac STS

1 Answer

How do you reset the oxygen sensor


Not sure I follow your question. The sensor would be replaced if it is not working. The computer would start using it as soon as you start the engine.

Aug 26, 2013 | 2005 Cadillac STS

1 Answer

2001 SEVILLE STS CODE PO420 HOW TO FIX ?


P0420 Is what is called the TWC system basicly it senses the oxygen storage capacity of the catcylic convertor Its saying the system is opperating below the minuman effictioncy level Its hard to say with out more information you may need a never convertor or it might be a problem with one of the oxygen sensors and your getting 0420 as a final code but it has to do with air intake the fuel trim the 02 sensors or the convertor it self One of these is the problem

Nov 16, 2010 | 2001 Cadillac Sts

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1998 cadillac sts service stabilty sys light also traction light and abs is it ok and safe to drive and is it a easy fix


The fault you're indicating is common to all those systems and maybe just one defective sensor....You can drive it in that condition but get it on a scan tool as quickly as you can, and get the fault rectified.... Regards Johngee10

Oct 16, 2010 | 2002 Cadillac Sts

2 Answers

Cannot find but 4 spark plugs in 1998 Cadillac sts


4 plugs in the front 4 in the back it is necessary toi remove some components to gain access to the rear bank of plugs

Jun 07, 2009 | 2001 Cadillac Sts

2 Answers

Oxygen sensors for 2001 cadillac sts


In most cases the front o2 sensors fails , there is one on the left and one on the right of the exhaust pipes. It could be one or both of them. Would need to know what the engine code for this or change both of them. Let me know and i can help.

Apr 15, 2009 | 1998 Cadillac Seville

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