Question about 1992 Buick LeSabre

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How to change oxygen sensors in 92 buick lesabre

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The O2 sensors are located on the exhaust system piping. Either on the manifolds or on the pipes themselves. You will need the vehicle cool, then disconnect the electrical connectors. Do them one at a time. You will need either a special O2 sensor socket or a 17 - 22 mm wrench to remove them. Unscrew them from the pipe and rescrew the new one back in. Then reattach the connectors. Then you can start the car.

Posted on Sep 26, 2009

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How Many Oxygen Sensors On A 2002 Buick Lesabre?

oxygen sensors ( O2S) are located after the cat converter/s
heated oxygen sensors (HO2S) are located in the exhaust manifold/s before the cat converters
so on a 4cyl/in line 6 cyl engine --1 of each
on a v6/v8 --2 of each

Apr 01, 2017 | 2002 Buick LeSabre

2 Answers

How many oxygen sensors in a 1992 Cutlass Supreme engine 3.1

one oxygen sensor (O2) for each bank after the cat converter
there is one for each bank of heated oxygen sensor (HO2S) in the manifold or exhaust pipe before the cat converter
different sensors doing different jobs

Oct 28, 2016 | Cars & Trucks

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Okay, I've replaced my oxygen sensor last week and

if you used a direct fit O2 it should not be giving you the code again unless the wires are touching near the plug, you got a defective sensor.
if you use a universal it may not read properly.

Sep 23, 2011 | 2000 Buick LeSabre

3 Answers

Where is the O2 sensor located

For 2000 Buick Lesabre 3.8L SFI OHV 6cyl the Oxygen Sensor is located: under hood, center, rear engine area, above exhaust pipe flange, mounted in exhaust manifold.


Fig. HO2S1 location "2" on 3.8L


Fig. HO2S2 location "4" on 3.8L

Hope this helps (remember to rate and comment this answer).

Jun 07, 2011 | 2000 Buick LeSabre

1 Answer

Well, we changed the oxygen sensor and my 1993 buick lesabre is still hesitating at times. The check engine light continues to come on...any clues now??? Could it be a fuel problem now....fuel filter or...

Sounds like this could be the mass air flow sensor.Have a local auto parts store diagnose the problem with their computer You could also have a bad throttle positioning sensor.

Oct 19, 2010 | 1993 Buick LeSabre

2 Answers

Buick regal 92 3.8L Horrible fuel mileage

Sounds like you might have an oxygen sensor problem. Your catalytic converter(s) maybe defective or dirty. That in turn can dirty up the oxygen sensor. A defective oxygen sensor will send faulty info to the computer, interpreting the fumes as cold (even when the engine warms up). That causes the computer to adjust the fuel mixture to very rich, giving you poor gas mileage and the fuel smell. Hope it helps.

Mar 16, 2010 | 1992 Buick Regal

2 Answers

92 LeSabre idles fine, runs rough when trying to accelerate.

Some "check engine" wraning light there? If yes, I suggest scanned the computer to know exactly what fault code is stored there. Could be a problem with fuel injection system, air intake line or other sensor refer at this systems (oxygen sensor, IAC, MAF or MAP sensors).

Keep us updated.

Feb 16, 2010 | 1992 Buick LeSabre

3 Answers

Location of upstream and down stream oxygen sensors on 3.8 buick lesabre

They are usually on your exhaust pipe before and after the catalitic converter.

Nov 07, 2009 | 2000 Buick LeSabre

1 Answer

1998 buick lesabre IAT sensor - Bank 1 shows up on computer

IAT means Intake Air Temp sensor. O2 is reffering to the Oxygen sensor. These are two different sensors on your vehicle. These perform different functions.

Feb 28, 2009 | 1998 Buick LeSabre

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