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O2 sensor location

Where are the o2 sensors located on a 2000 Saturn SL ?

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What engine do you have? Does your car have a V6 or a four-cylinder? Regardless of the engine, you will have an O2 sensor after the catalytic converter. On a four cylinder you'll have one in the exhaust manifold as well. On a V6 you'll have one sensor between the engine and cat, and one after each cat as well. The sensor(s) before the cats determine your fuel mixture, and the after-cat sensor(s) are used to monitor the efficiency of the cat.

Posted on Oct 19, 2008


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How to replace the oxygen sensor

There are two sensors, one on the exhaust manifold the other on the catalytic converter. The exhaust manifold is the easy one to replace, the other the car needs to be on a lift.

Changing the O2 sensor will improve you gas mileage,

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O2 sensor is comming up on service engine light warning, auto parts store says that there are 2 sensors on the car. Up stream and down stream. What are the locations for these and how hard are they to...

Hi Steve refers to the location of the oxygen (o2) sensors relative to the engine. The upstream sensor is the one closest to the engine. The downstream sensor is furthest from the engine. Think of it as the way a stream of water, or in this case, a stream of exhaust flows.... From the engine To the tailpipe.
Changing them is no problem, getting to them sometimes can be a bear,, if you can reach them,, its simply remove the old one with a couple of bolts, and unplug it,, and replace

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1 Answer

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Jul 13, 2011 | 1998 Saturn SL

1 Answer

I need to know where my bank one sensor one o2 sensor is located at

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Mar 20, 2011 | 2000 Saturn SL

1 Answer

I need a new oxygen sensor for my 96 saturn sl series twin cam 16valve. i was wondering where it's located at and if i would need a new egr valve also and what kinds would you recommend?

What is wrong with the O2 Sensor?
How was it tested?
Why are you mentioning the EGR, and what do you mean by what kind. It either fits your vehicle or it doesn't.
What are the vehicles problems,before you throw parts at it?

Sep 13, 2010 | 1996 Saturn SL

1 Answer

Where is the O2 Sensor located on the 98 SL1 Saturn

There are two O2 sensors. One is for the computer to control the Air/Fuel ratio mixture and one is for the catalytic converter. The one for the catalytic converter tells the computer nothing more than if the cat. con. is working properly.

The major O2 sensor you are probably looking for is on the exhaust manifold just below where all 4 cylinders meet into one pipe. It has a wire going to it and it sticks out of the exhaust a good ways, it's hard to miss.

Jan 30, 2010 | 1998 Saturn SL

1 Answer

How do I fix or replace a idel sensor

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