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Anonymous Posted on Dec 19, 2016

Location of oxygen sensor on 1979 buick regal with 3.8 liter engine

5 Related Answers

emissionwiz

Marvin

  • 85242 Answers
  • Posted on Oct 20, 2008

SOURCE: locate the oxygen sensor on a 4.2 liter

In the exhaust pipes just down stream from the exhaust manifolds.

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Anonymous

  • 104 Answers
  • Posted on Dec 30, 2008

SOURCE: how to replace a crank sensor on a 93 buick regal 3.8L engine

Im assuming this is the Series I 3800? If so, if you can email me I can send you some directions on the process. Its for a Series II 3800 but it should be similar. If you cant email me, post up and I'll see what I can do.

Roger Foster

  • 701 Answers
  • Posted on May 06, 2009

SOURCE: need location of crank angle sensor on 1997 pontiac sunfire 2.2 liter

Hello oldiro: My name is Roger and I can help. From under the vehicle look up between the transmission and the side of the block. Mid motor above the pan rail there is a bolted in sensor. This should be the crank sensor.It will have two wires plugged in to it. Please rate this answer as this lets us know you received the information you asked for. Should you need further help please just ask. Thank You for using FixYa. Roger

Molson02536

Harvey N Tawatao

  • 3854 Answers
  • Posted on May 29, 2009

SOURCE: location of oxygen sensor

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. Keep me posted

Anonymous

  • 1608 Answers
  • Posted on Dec 23, 2009

SOURCE: location of oxygen sensors on 2002 dodge grand

The o2 sensors are located on the exhaust system.The upstream in on the rear exhaust manifold and the down stream is in front of the catalytic converter.Usually when they are bad they will make the check engine like go on.Make sure the air filter is clean,tires at correct inflation,alignment is to specs.If the vehicles pulls to one side or the other or steering wheel is not straight when driving down a straight stretch of road.Also tires are wearing normal.Use cruise control where ever on highway.If you let your vehicle warm up in winter.This also uses gas.Hope this helps.Good luck.

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Location of the engine oxygen sensor for a 2009 Buick lucerne

There are at least 3 oxygen sensors. There is one on each side of the exhaust system as the exhaust leaves the engine. These are the upstream sensors. The exhaust then goes to catalytic converters. If you have two, there is a sensor after each one. These are the downstream sensors. Before replacing a sensor, uou should determine if it is bad. Trouble codes indicating problems with the oxygen sensing circuits may have many causes other than a bad sensor. Also be advised that a special socket is needed to remove an oxygen sensor.
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What is the Wire Order with distributor?

theres no distributor and the firing order for your 3.8 is 1-6-5-4-3-2-the following link shows the coil pack
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For the Buick V6 231 3.8 liter turbocharged engine:
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Answers!
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2003 buick regal,3800. code 135 coming up. car runs til reaches operating temp,then will not idle. Is this O2 sensor failure?

P0139 - Oxygen Sensor Circuit Slow Response (Bank1, Sensor2)
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- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
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Best advice check it out first!
DO NOT Shotgun it as in replace things until it works. You are blowing money at that point.
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1995 Buick Regal 3.1 liter V-6 VIN "M"

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2001 buick regal w/ bad ignition coil and clogged catylitic conv.

Hello! The defective ignition coil more than likely contaminated the downstream O2 sensor...If there isn't a trouble code and engine performs in a normal fashion, there's no reason to change the upstream sensor...

Guru........Saailer



I’m happy to help further over the phone at https://www.6ya.com/expert/david_6df67de3b14de867

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The error that I'm showing for error code P1133 is 
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