Question about 1993 Buick LeSabre

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Were is the mass flow sensor located on a 1993 buick

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  • 81 Answers

On the carb it is hard to undo need small angled scewdriver has two tiny screws

Posted on Jan 21, 2013

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Posted on Jan 02, 2017

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SOURCE: My car was diagnoised with a bad air flow sensor

the mass air flow sensor is located under the top plastic engine cover. to remove this un screw the oil filler tube by hand and remove the top cover. its just to the right of center engine. unplug this sensor. next it has two screws to take this off. It is not standard screws so look at it. remove them and replace sensor. After install go to autozone and have the warning code removed. This is done free. 2000 buick lesabre

Posted on Dec 03, 2009

  • 321 Answers

SOURCE: buick lesabre nightmare 2

  • The PCM doesn't even see the O2 sensor until engine temp has reached operating temp,the vehicle goes from open loop when cold,to closed loop when warm,where the PCM uses the O2 sensor to measure the rich/lean of the exhaust content,and from that,adjust fuel richness to achieve 14.7 to 1 air/fuel ratio.So when cold,the O2 sensor is out of the picture anyways.When unplugging sensors,it can be deceitful.The PCM has a program whereas,if a critical sensor (such as the mass air flow) is somehow damaged and out of the picture,the PCM will substitue a generic value that will allow the engine to stay running.So,by unplugging the MAF,it did try to run on it's own better than plugged in,there's the problem area.The vehicle is running better with the MAF unplugged,because the MAF is likely bad,and the PCM is substituting it's generic value when it IS unplugged.Something to recheckThe PROM update is a newer program for the PCM,and likely won't fix it unless the PCM is bad.I would try a good used PCM as a last or later resort,because i have seen my fair share of defective PCM's too.I have taken some PCM's apart,and found capacitors that had gone bad and leaked all over the circuit board,mostly Honda and Mitsubishi and Chrysler though.Good luck,keep me posted.

Posted on Aug 01, 2008

techbuster
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SOURCE: Mass Air Flow problem

The M.A.S. is in the top of the metal tube between the air filter box and the intake manifold. It will have a wire connected to it and it is held in by 2 screws. This is an easy replacement and should take no more than 5 to 10 minutes, assuming you are taking your time.

Posted on Aug 03, 2009

  • 7 Answers

SOURCE: P0102 code on a 2000 Buick Park Avenue

yes your right. it is a low circuit input code for a mass air flow sensor. you can try taking the mass air off and cleaning it good. sometimes it will help but normally they are just bad.

Posted on Feb 12, 2010

SOURCE: Where is the Mass Air Flow Sensor?

It is inline with the air intake .They are typically held in the tubing with hose clamps and a 2 or 3 wire connection. Make sure you check for direction of air flow.

Posted on Apr 21, 2010

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Where are the O2 sensors? I found one directly behing the spark plugs on the back.


The O2 sensor (2 on V engines) are in the exhaust system pipes before the catalytic converter, the next sensor is the efficiency monitor for the catalytic converter system it looks like a O2 sensor but performs a much different function as far as testing goes. The codes you have follow.

P0420 - Catalyst System Efficiency Below Threshold Bank 1
What does this mean? In most cases it means the catalytic converter is worn out and that is sensed by the catalyst monitor I spoke of earlier.

P0102 - Mass or Volume Air Flow Circuit Low Input
Faulty mass air flow sensor
- Dirty mass air flow sensor (located in the air intake hose to the engine from the air cleaner)
- Dirty air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks

Nov 02, 2012 | 2003 Buick LeSabre

1 Answer

What causes the engine is at normal operating temperature idle roughly and die?


I would check the mass air flow sensor that is located on the air intake (its the box in line on the air intake with wires going into it) with the engine running take a screw driver and smack the mass air flow sensor with the handle... if the engine stalls or starts running real rough that might be the culprit.

Feb 26, 2011 | 1993 Buick Regal

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

Where is the Air Flow Meter/Mass Air Sensor on a 1993 Mercury Sable and it is easy to replace?


The MAF or mass air flow sensor is located on a tube connecting the air filter box to the throttle body. Just unplug the connector and unscrew the sensor then pull it out.

Aug 11, 2010 | 1993 Mercury Sable

2 Answers

1993 Buick Regal Custom 3.1L starts, runs about 5 minutes and then stalls. I think it is the MAF sensor, but I can't find the MAF sensor, and my Chilton doesn't list it for this model/year/engine...


it is the large round piece located in the round plastic flex tube that connects to your air filter and the other end to the throttle body,you can do a tap test on this piece,start your car,and tap on the flat part of the MAF sensor,if your car stalls right out it bad,use a screw driver handle to tap with.

Dec 22, 2009 | 1993 Buick Regal

1 Answer

Where is mass air flow senser on a 1989 buick regal


Hi

Thanks for using FixYa. The BUICK Regal Mass Air Flow sensor is usually installed in the intake air duct between the air filter and the throttle body mounted on the intake manifold. Also check the throttle body for mass air flow sensors location.
On mass air flow sensors with a sense wire, this wire can become contaminated with dust particles. These particles can be removed with automotive solvents that are safe for the use on mass air flow sensors. Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor.

Bad or contaminated BUICK Regal Mass Air Flow sensor can possibly cause a wide range of various vehicle drivability problems such as stalling, especially when the engine is cold, misfiring, poor acceleration, etc. In addition, a problem with the Mass Air Flow sensor often causes the "check engine" or "service engine soon" light in the vehicle instrument panel to illuminate.

Please do accept the solution if the issue is resolved or else revert for further assistance.

Thanks
Rylee

Nov 09, 2009 | 1989 Buick Regal

2 Answers

My car was diagnoised with a bad air flow sensor


the mass air flow sensor is located under the top plastic engine cover. to remove this un screw the oil filler tube by hand and remove the top cover. its just to the right of center engine. unplug this sensor. next it has two screws to take this off. It is not standard screws so look at it. remove them and replace sensor. After install go to autozone and have the warning code removed. This is done free. 2000 buick lesabre

Sep 18, 2009 | 2000 Buick LeSabre

2 Answers

Trouble code p0102 mass air flow sensor, could there be another cause for this code other than the sensor itself


It could be a dirty air filter a, spark plug, spark plug wires.
a leak in the air intake system or the mass air flow sensor

Aug 30, 2009 | 2000 Buick LeSabre

2 Answers

Looking to findthe mass air flow sensor on a 89 chevy corsica


hi the mass air flow sensor is in the intake hose/tube between the air filter and intake closer to the intake manifold will have wires pluged into the side of it

Dec 10, 2008 | 1993 Chevrolet Corsica

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