Where is the mass air flow sensor on a Chevy?

In this guide, you will learn about Chevy Mass Air Flow (MAF) sensor problems, common symptoms, and how to replace the MAF sensor on a Chevy. The engine control unit uses data from the MAF sensor to calculate the correct mixture of air and fuel that the engine needs. A Chevy MAF sensor is located right next to the engine air filter housing.

What are the symptoms of a bad mass air flow sensor?

7 Symptoms of A Bad or Failing Mass Air Flow Sensor 1. Check Engine Light (CEL) 2. Difficulty during engine start 3. Poor fuel economy 4. Rough Engine Idle 5. Engine hesitation during acceleration 6. Engine hesitation under load 7. Gas smell from exhaust pipe

Where is the MAF located on a Chevy Blazer?

MAF is the mass air flow sensor and is located between the air filter box and the carb. You’d probably have one or both of these codes po101, po102 and possibly duplicate codes. We don’t have a MAF problem.

Is it worth replacing a mass airflow sensor?

You might be thinking of installing a new mass airflow (MAF) sensor to see if it’ll fix your engine driveability problems. But it’s not a good diagnostic approach to just replace the sensor without investigating. You can spend $100 or more on a quality airflow sensor and yet solve nothing.

What happens when the mass air flow sensor fails?

Symptoms that you may notice when your MAF sensor fails: The car is hard to start or has trouble turning over. Engine stalls soon after starting. The engine runs lean or rich. Engine drags or hesitates when idle or under load. Changing the mass airflow sensor on a Chevrolet is very easy and takes less than 30 minutes.

How to tell if your air flow sensor is bad?

Quick test to tell if Mass Air Flow Sensor is bad or dirty which could be causing your car or truck to run bad or keep cutting off. Quick test to tell if Mass Air Flow Sensor is bad or dirty which could be causing your car or truck to run bad or keep cutting off. Skip navigation Sign in Search Loading… Close This video is unavailable.

What are the symptoms of a bad MAF sensor?

This list is not all inclusive but it does contain the most common symptoms of a BAD MAF sensor are: The CHECK ENGINE LIGHT (CEL) on your instrument cluster is lit nice and bright with one of the following codes: P0101 Mass Air Flow System Performance. P0102 Mass Air Flow Low Frequency.

How to clean the GM MAF sensor step by step?

If you’d like to see the MAF sensor cleaning process explained step by step click here: How To Clean The Mass Air Flow Sensor. This list is not all inclusive but it does contain the most common symptoms of a bad MAF sensor are: P0101 Mass Air Flow System Performance. P0102 Mass Air Flow Low Frequency. P0103 Mass Air Flow High Frequency.

Is the GM mass air flow sensor Dirty?

Since a dirty MAF sensor makes the engine pollute more and produce less power. Alright, enough of the b.s. and let’s get started with the actual step by step cleaning of the GM mass air flow (MAF) sensor (Buick, Chevrolet, Oldsmobile, Pontiac, and GMC models). Remove the mass air flow sensor from the car or truck.

What happens if the mass air flow sensor fails?

This information is then used by the ECU to calculate the amount of fuel needed for the correct air-fuel mixture. If themass air flow sensor has failed or needs to be cleaned, this can cause especially rich or lean fuel mixtures. That can result inhard starts or stalling after starting, or hesitation while under load, at idle, or accelerating.

How to remove mass air flow ( MAF ) sensor?

Remove the sensor. Install the new MAF on your Chevrolet. Tighten the screws so that they are snug. Plug the electrical connector until it locks in place. The check engine light will require a few days of driving to reset on its own.

What are the symptoms of a MAF sensor not working?

What is the rich code on the GM MAF sensor?

P0102 Mass Air Flow Low Frequency. P0103 Mass Air Flow High Frequency. Lean and/or Rich code (s). Fuel Trim code (s). A tremendous lack of power upon acceleration. Black smoke coming from the tail-pipe. Vehicle may idle rough and stall.

Why are IAT and MAF sensors in the same sensor?

Your IAT (Intake Air Temp) and MAF are all in the same sensor, this video shows you location and how easy it is to replace. The IAT helps the car when it starts up by telling the computer what the temp is so it can adjust how it runs. A bad IAT can make your car run bad and burn excess gas. Loading…

How to clean the MAF sensor on a Chevy Impala?

Remove the Sensor- Take care not to damage the wiring harness or the connector pins that receive the harness in the MAF. Simple hand tools will be all that you need to complete the job. Clean the Sensor – Now that you’ve removed your Impala’s MAF sensor, it’s time to clean it.

What happens if the mass airflow sensor is bad?

The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. A bad mass airflow sensor can leave your Chevy Impala’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Impala’s ECU.

Where is the MAF sensor on a Chevy Cruze?

What kind of air flow sensor do I need for my MAF?

Depending on the year and make of the vehicle, you may find different types of mass air flow sensors, from the old-style vane air flow meter to the modern era hot-wire mass air flow meter. Since hot-wire technology is the most widely used today, we’ll assume that your MAF is using that design.

What kind of MAF sensor does GM use?

This type of GM mass air flow (MAF) sensor is used in a lot of GM makes and models, to find out if this article applies to your specific GM (Cadillac, Chevy, Buick, GMC) vehicle, take a look at the list at the bottom of this page. Now, in case this is not the article you’re looking for, there are also 3 other GM MAF sensor test articles:

Can a car run without the mass air flow sensor?

The mass airflow sensor is a key sensor in your car. Your car has a lot of sensors, and this is just one that helps your car run properly. That brings up the question of can your car run without the mass air flow sensor? In this article, we will look at what happens when you disconnect the mass airflow sensor.

What are the codes for mass air flow?

Note: Some MAF sensors also incorporate an air temperature sensor, which is another value used by the PCM for optimal engine operation. Closely related MAF circuit trouble codes include P0100, P0101, P0103, and P0104. Photo of a MAF sensor:

When to set the p0101 mass air flow code?

The P0101 code is set when the Powertrain Control Module (PCM) detects that the Mass Air Flow (MAF) sensor frequency is below a predetermined value. The Mass Air Flow (MAF) sensor measures the amount of air ingested by the engine.

What are the possible causes of a p0101 Chevrolet?

P0101 CHEVROLET Possible Causes 1 Faulty mass air flow sensor 2 Intake air leaks 3 Dirty mass air flow sensor 4 Dirty mass air filter 5 Mass air flow sensor harness is open or shorted 6 Mass air flow sensor circuit poor electrical connection

What are the possible causes of a p0102 Chevy?

P0102 CHEVROLET Possible Causes. Faulty mass air flow sensor. Intake air leaks. Dirty mass air flow sensor. Dirty mass air filter. Mass air flow sensor harness is open or shorted.

Can a bad mass air flow sensor trigger a check engine light?

Bad mass air flow sensor with no check engine light? Sometimes a mass airflow sensor can start to fail and even trigger engine error codes such as P0101 and P0102, without triggering a check engine light. There must be a problem with the mass airflow sensor circuit for the check engine light to illuminate.

What causes rough idle after replacing mass air flow sensor?

Replaced air filter and maf sensor. Problems with vehicle turning off seemed to go away but now I have a rough Idle. Car will drop below 1000 rpms and then rev back up to over 1500 like it wants to shut off. Idle problems seem to go away when maf sensor is disconnected. Car throwing codes p0171 and p0102.

What are the symptoms of a bad air flow sensor?

The symptoms of a bad mass air flow sensor include low engine power, poor fuel economy, an engine that won’t start, a check engine light on the dash and a gas smell from the exhaust fumes. A bad mass air flow sensor is often the likely culprit if your car isn’t running as it should.

Can a bad MAF sensor leave a Chevy Silverado running rough?

A bad mass airflow sensor can leave your Chevy Silverado’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold.

What happens if you leave the mass airflow sensor Unplugged?

Q: Car runs with the mass airflow sensor unplugged. If you plug it in it will die if the car is running. If you unplug the mass air flow sensor the car will start. If you try to plug it in while it’s running the car will die. My car has 90000 miles. My car has an automatic transmission. This is a sure sign of a shorted mass airflow sensor.

What’s the idle speed of a 1988 Camaro?

When in gear (ex. Reverse, Drive, 2nd, 1st) my car idle “settles” around 750 on the tach, but then starts to fluctuate around there, moving up to 900 (or so) then dips down to about 500 on the tach. While the idle speed is fluctuating my voltage drops dramatically.

Where is the idle air control valve on a Camaro?

I’m going to say check your IAC valve (idle air control), this is located on the passenger side underneath the throttle body. These get all carboned up and can’t re-seat themselves properly. You may have to perform a minimum idle setting also.

What was the problem with my 1988 IROC Z 350?

My 88 Iroc-z 350 did the exact same thing. It does it every now and then. Every once in a while it would get so bad that it stalled, throwing the check engine light on. I took it to the garage, and they said that they got a mass air flow trouble code, but they couldn’t find the exact problem.

What are the error codes for service engine light?

31. Low voltage at manifold absolute pressure sensor OR Fuel injector OR Park or neutral switch OR CAM diagnostic OR Governor malfunction OR Wastegate overboost OR Wastegate eletrical signal open or shorted to ground 32. 33. 34. 35. 36. 37. 38.

What causes a mass air flow sensor to go bad?

What causes a mass air flow sensor to go bad? Most of the time, a mass air flow sensor will fail because it loses its sensitivity over time due to a build up of dirt or grease. It will also be affected by the high temperature of the engine.

Can a bad air flow sensor trigger a check engine light?

Why is my mass air flow not working?

I used to get a CEL for the MAF sensor quite often. After cleaning it properly several times with MAF sensor cleaner & re-installing it, I realized one of the mounting screws wasn’t tightening fully, allowing it to seat properly into the plastic air inlet tube where it’s mounted.

What causes an engine to stall while cool down?

The mass air flow or crankshaft position sensor may fail causing the engine to intermittently stall. It may be necessary for the engine to cool down before it will restart.

When to replace a mass air flow sensor?

Sometimes mass airflow sensors get shorted or stop working and need to be replaced. Once you have driven your car enough to test the mass airflow sensor it is a good idea to plug it back in or replace it after you are done testing. This is because it will help you get the best gas mileage possible.

What’s the purpose of the mass air flow sensor?

The basic purpose of the mass airflow sensor is to measure the amount of air that is going into the engine so your car can release the proper amount of gas into the engine, so the car is able to run correctly. What Happens If You Disconnect Mass Air Flow Sensor?

Where is the MAF sensor on a Nissan Murano?

Locate the MAF Sensor – It’ll be in between the air filter and the throttle body. Remove the Sensor- Take care not to damage the wiring harness or the connector pins that receive the harness in the MAF. Simple hand tools will be all that you need to complete the job.

Here are the most common symptoms of a bad or failing MAF sensor: Idle Issues – Your Impala may run rich or lean when idling, or it may also idle erratically. A rich condition is when there is not enough air relative to the fuel in the air/fuel mixture.

Where is the MAF sensor on a GMC Sierra?

Uses mass airflow sensor cleaner. It’s really cheap and available at any parts store. It sure beats the heck out of having to buy a new sensor. Locate the MAF Sensor – It’ll be in between the air filter and the throttle body. Remove the Sensor- Take care not to damage the wiring harness or the connector pins that receive the harness in the MAF.

Why is my airflow sensor not working on my car?

Also, if the computer isn’t the issue, then it means one of the other sensors is probably off if the car isn’t able to keep running without the mass airflow sensor because the sensor was helping the car compensate for the other issues that it was having.

When does the PCM use the MAF sensor?

The PCM uses the MAF sensor signal when calculating how much fuel to give the engine—more air equals more fuel. There are several different types of MAF sensors found in different vehicles.

Where is the mass air flow sensor located?

MAF sensors are located between the air filter and the throttle body and are responsible for measuring the amount of air entering the engine. Most vehicles have a hot wire MAF sensor. It has one heated wire and one ambient temperature wire.

Where is the MAF sensor on my car?

You may also notice you’re filling up at the gas station more than usual. MAF sensors are located between the air filter and the throttle body and are responsible for measuring the amount of air entering the engine. Most vehicles have a hot wire MAF sensor. It has one heated wire and one ambient temperature wire.

3 Symptoms of a Bad Mass Air Flow Sensor. 1 Your Car Hesitates or Suddenly Jerks Forward While Accelerating. A bad MAF sensor can cause your vehicle to experience poor drivability issues such as 2 Your Air Fuel Ratio is Too Rich. 3 Your Air Fuel Ratio is Too Lean. 4 Your OBD-II Scanner Gets Code P0101.

How to replace the MAF sensor on a Chevy Silverado?

To re-install the cleaned or new MAF sensor, attach it to the air filter housing and air inlet hose. Then, tighten the hose clamps and plug in the harness connector. Figure 4.

How to test the GM MAF sensor 4.8L, 5.3L, 6.1L?

You can find this tutorial in Spanish here: Cómo Probar El Sensor MAF (GM 4.8L, 5.3L, 6.0L, 8.1L) (at: autotecnico-online.com ). P0101 -What Does It Mean? (1999-2006 V8 Chevrolet Silverado, GMC Sierra). Now, in case this is not the article you’re looking for, there are also 3 other GM MAF sensor test articles:

A bad mass airflow sensor can leave your Chevy Silverado’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold.

How to remove a mass air flow sensor?

Mass air flow sensor (meter) location, diagnosis, removal and repair. DIY car repair with Scotty Kilmer, an auto mechanic for the last 42 years. If you liked this video, consider subscribing and press the bell Icon to get updated on the latest videos every week.

Are there air leaks in the Ford MAF sensor?

The second most common problem I have encountered on most Fords (Mercurys and Lincolns) over the years is air leaks between the MAF sensor and the throttle body. It is crucial, yes very critical that you first check that there are no air leaks between these two.

What is mass air flow sensor size is right for my Mustang?

Getting the most horsepower out of your Mustang without risking the possibility of damage to your motor requires the perfect air and fuel mixtures. Make sure your Mustang’s mass air flow sensor is big enough to handle the task. There are common misconceptions about mass air flow (MAF) sensors on Mustangs.

What is the code for mass air flow sensor?

This Code’s full read out is: P0101 – Mass Air Flow Sensor Circuit Range/Performance. The engine computer uses the MAF sensor signal to determine how much fuel needs to be injected to meet the proper air-fuel ratio.

What happens when a mass air flow sensor goes bad?

The mass air flow (MAF) sensor, part of your vehicle’s electronic fuel injection system, is responsible for calculating the total amount of air entering the engine. A faulty MAF sensor can cause your vehicle to run too rich or run too lean.

How does the MAF work on a Mustang?

As with most sensors on the Mustang, the MAF sends information to the computer as a voltage reading with a maximum value of five volts. The more air that is recognized entering the engine, the higher the voltage.

Updated: February 18, 2020 A Mass Air Flow sensor (MAF) is one of the key components of an electronic fuel injection system in your car. It is installed between the air filter and the intake manifold of the engine.

What can cause a MAF sensor to fail?

The sensor element could get contaminated or damaged. Sometimes, an improperly-installed or ripped air filter can cause the MAF sensor to fail sooner. Over-soaking a washable air filter with oil can also cause troubles with the air flow sensor.

What can cause a Mazda air flow sensor to fail?

For example, in some Mazda Skyactiv engines, a failed mass air flow sensor could cause the engine to crank but not to start. An improperly installed or collapsed air filter can cause the air flow sensor to fail sooner. Over-soaking a washable air filter can also cause troubles with the air flow sensor.

Mass Air Flow Sensor Symptoms 1 Check Engine Light Illuminates. 2 Lean Idling. 3 Engine Does Not Start Properly. 4 Engine Drags. 5 Delay in Acceleration. 6 (more items)

What does the MAF sensor on a GMC Sierra do?

A MAF sensor measures the density of the air entering the intake manifold. It passes this information onto your Sierra’s ECU. The ECU uses this information along with other sensor data to control the amount of fuel that enters the combustion chamber. If you do determine that you need a new mass airflow sensor, they aren’t too expensive.

Can a GM mass air flow ( MAF ) sensor be cleaned?

Not to mention the harsh solvent can damage the MAF sensor’s electronics. Also, don’t attempt to physically clean the sensor with anything (like a cotton swab) or you may break the wires.

How do you clean the MAF sensor on a Chevy Silverado?

Simply spray the inside of the sensor, let the cleaner sit for a few seconds, and wipe off any excess cleaner on the inner and outer edges. To re-install the cleaned or new MAF sensor, attach it to the air filter housing and air inlet hose.

Is the GMC Sierra mass air flow sensor compatible?

Mass Air Flow Sensor – Compatible with Chevy, Cadillac, GMC & Other GM Vehicles – Silverado, Suburban, Tahoe, Yukon XL, Sierra, Escalade, ESV, 5.3L, 6.0L, 4.8 – Replaces 25168491, AF10043, 25318411 Mass Air Flow Sensor Meter Compatible with Chevy Silverado GMC Sierra MAF Sensor Replace 25318411 25168491 AF10043 (5 Prong) . . . . FREE Shipping.

How much is the mass air flow sensor?

Shop AutoZone for GMC Sierra 1500 Mass Air Flow Sensor. 10% OFF $75. Use Code: DIYSAVE10 Online Ship-to-Home Orders Only

What does an ACDelco mass air flow sensor do?

Video Player is loading. This is a modal window. An ACDelco GM Original Equipment Mass Air Flow (MAF) Sensor is a key part of the engine management system, and is a GM-recommended replacement for your vehicle’s original component.

Is the MAF sensor the same on a Pontiac?

Whether your driving a Buick, Chevy, Olds, or Pontiac vehicle (with a 3.8L V6) the circuits descriptions of the wires coming out of the Mass Air Flow (MAF) sensor are the same.

What can a bad MAF sensor do to a Chevy Tahoe?

The mass airflow sensor (commonly abbreviated to MAF) is one of the most important engine management sensors. A bad mass airflow sensor can leave your Chevy Tahoe’s engine running rough, or even inoperable. A MAF sensor measures the density of the air entering the intake manifold.

How much does it cost to replace a mass air flow sensor?

You can expect a total cost of 140 to 550$ for a mass air flow sensor replacement, depending on the car model. The MAF sensor itself is often quite expensive, as you sometimes have to replace the whole MAF sensor housing. Even the sensor itself can be expensive.

The most common symptoms from a bad mass air flow sensor are slow accelerating and reduced engine power. You can also notice a difference in the fuel economy as the main function of the mass air flow sensor is to let the engine know how much fuel it should inject.

What does mass air flow sensor do for Chevy Tahoe?

Get even more out of it with a new mass air flow sensor for Chevrolet Tahoe from AutoZone. This component allows more accurate readings of the air flow entering your engine, improving fuel economy. With its towering stance and solid construction, your Tahoe gives you security and comfort while navigating hectic city traffic.

How to test the GM MAF sensor ( p0100 )?

P0101: Mass Air Flow (MAF) Sensor Circuit Range/Performance Problem. P0102: Mass Air Flow (MAF) Sensor Circuit Low Input. P0103: Mass Air Flow (MAF) Sensor Circuit High Input. Lean and/or Rich Diagnostic Trouble code (s).

What does the GM MAF sensor output at idle?

At an idle of about 680 RPM’s, the MAF sensor outputs about 3.2 K Hertz. Let me emphasize the words ‘ outputs about ’ because every vehicle will output a slightly different value depending on several conditions like: engine temperature, ambient air temperature, etc.

What does the MAF sensor on a PCM do?

For this, the PCM relies on the mass air flow sensor, among several of the sensors that monitor the engine and transmission. The MAF sensor’s job is to measure the amount of air the engine is breathing at any given RPM.

How does the MAF sensor work on a car?

The MAF sensor’s job is to measure the amount of air the engine is breathing at any given RPM. It then converts this measurement into a Hertz frequency reading (as measured by a digital multimeter that can read Hz Frequency) and shoots it to the PCM.

What is the MAF signal at 1500 rpm?

At about at 1500 RPM;s the MAF signal output is about 4.2 K Hz. At 2500 RPM’s it hovers around 5.2 K Hz. As you can see, the more air the engine breathes (or the higher the RPM’s) the higher the MAF output signal becomes, and of course the less air the engine breathes, the lower the reading on your digital multimeter.

Why is my air flow sensor out of range?

Sometimes a poor electrical connection at the air flow sensor connector could also cause the air flow readings to be out of range. For this reason, the air flow sensor connector terminals as well as the wiring needs to be carefully inspected.

How to clean the MAF sensor on a GMC Sierra?

Where is the mass air flow sensor ( MAF ) located?

Usually, the MAF will be just “downstream” of the air filter, in the tube that carries air to the resonator and throttle body. You can see the MAF and it’s related connector circled in this photo: 4. Release the electrical connection on the MAF. There is a small tab that holds the connection in place.

What to do if your MAF sensor goes bad?

Often, the mass airflow sensor really only needs cleaning when they go bad. Some folks recommend using alcohol because it’s usually on hand, and can clean the sensor. This is a bad idea, it can ruin the sensor. Uses mass airflow sensor cleaner. It’s really cheap and available at any parts store.

Where is the mass air flow sensor on a Chevy?