Check engine light code p0101 is set when the measurement of air entering the engine by the mass air flow sensor is outside of the manufacturers specified range. Learn about this problem, why it occurs, and how to fix it. Need to replace a defective mass air flow maf sensor in your nissan altima as soon as possible. The term lean means too much air and too little fuel. Symptoms of a bad or failing evaporator temperature sensor. Symptoms this is a list of common symptoms you will notice when your nissan maf sensor fails. Intake air temperature iat sensor is built into the mass air flow sensor. This trouble code can be retrieved with a scan tool. One of the first symptoms of a potential problem with the evaporator temperature switch is no cold air from the ac system. 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. Both nissan and your nissan dealer are dedicated to serving all your automotive needs. Nissan altima mass air flow sensor replacement nissan. Problems with mass air flow sensors are common in many cars, including bmw, gm, volkswagen, mazda, toyota, nissan and other. I got home and read the code, and discovered it was a p0101 code mass or volume air flow circuit.
Altima mass air flow sensors best mass air flow sensor. The energetic engine and impressive fuel economy are what drew you to your nissan altima coupe, but unfortunately, a faulty air sensor can have a negative effect on both. As a result, the pcm miscalculates the amount of the injected fuel, and the engine runs lean. I didnt really want to take off the maf sensor or at least separate it completely, but the design made it almost impossible to do that on this older car, which wasnt cooperating. If your check engine light is on you could have a bad mass air flow sensor. P0102 2011 nissan altima sedan tech notes before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. P0101 nissan ricks free auto repair advice ricks free auto.
Follow instructions below to read nissan check engine light codes yourself with an. One part of your nissan altima is the mass air flow sensor. I recently had all of the fuel injectors replaced and when i picked it up i was told that the the shop were getting a code for the camshaft position sensor. It consists of a hot film that is supplied with electric current from the engine control module. Nissan altima sentra mass air flow sensor 1aeaf00031 does not fit your. I cleaned old maf sensor, put it back, and cleared the code. How to clean a nissan mass air flow sensor it still runs. These symptoms indicate a maf that has a contaminated hot wire. Remove the electrical connectors from the sensor before you attempt to replace it. Here are some of the most common symptoms of a faulty mass airflow sensor.
The mass air flow maf sensor can fail, causing various drivability problems. The 2011 nissan altima service engine soon light came on. P0101 nissan ricks free auto repair advice ricks free. Failed mass air flow sensor may cause driveability issues. Spectra premiums complete line of new mass air flow sensors, featuring ceramic pc boards to ensure premium performance and durability. How to test a nissan pathfinder maf sensor my pro street. Shouldnt the mass air flow sensor dictate the voltage going out to the ecm. If your fuel becomes contaminated or your exhaust system fails to perform correctly, you may also see symptoms indicating that your catalytic converter is clogged. My friend put the computer on it said the mass air flow sensor was bad.
This acura engine has both a maf and a manifold absolute pressure map sensor. Many people will replace the air fuel sensor or o2 sensor as soon as they get a bad reading, but the root cause is often a dirty or faulty mass air flow sensor or vacuum leak, thus causing the o2 or af sensor to read differently to compensate. His began his writing career writing service manuals at chilton book co. You must have simple understand of your altima mass air flow sensor that you can find some problem correct in time. Common problems that trigger nissans check engine light to stay or flash. P01 2011 nissan altima sedan intake air temperature.
A p0101 nissan trouble code is very common and there are two fixes for it. Nissan altima questions check engine light on, replaced maf. I wanted to clean the air flow sensor in the 2011 mazda 2 but cant unplug the sensors electrical connector. P0101 nissan diagnose and fix a p0101 nissan trouble code.
It should be considered a high priority to fix, as the maf sensor not reading properly can really make an impact on the performance of the vehicle. Before replacing the mass air flow maf sensor, try replacing the air filter and cleaning the maf sensor with low compress air or maf sensor cleaner. How to troubleshoot a mass airflow sensor in a few simple steps. However, in the past 2 weeks i have been regretting it. Jan 17, 2019 instead of a map sensor, most modern vehicles use a mass air flow maf sensor that the computer uses to calculate air flow along with engine rpm. Off topic section 20022006 nissan altima discussion 2. Bopart mass air flow sensor meter maf 226807s000 for nissan altima infiniti g37, 200720 sentra, 20052015 xterra, 20032009 350z 3. Nissan altima sedan,20 nissan almera,20 nissan 370z,2012 nissan. After changing the mass air flow sensor 2 times i finally got a nissan mass air flow sensor since the nissan dealership told me it had to be the original sensor not aftermarket. If the code comes back, it may be necessary to replace the maf sensor. The mass air flow sensor is designed to measure the amount of the air an engine takes in. If the maf sensor sends the wrong signal to your cars computerbecause of dirt or other contamination around its sensing elementsyour engine will be fed with the wrong amount of air fuel mixture.
Why do i keep getting a p0101 code in my 2011 nissan sentra asked by danish. Cleaning maf sensor debugging p0101 2011 nissan sentra. As we all know, the prefect ration for oxygen and gas in the engine is 14. This will restrict air flow to the engine resulting in an incorrect fuel mix.
Plug the electrical connector until it locks in place. Nissan sentra failed mass air flow sensor may cause driveability issues 189 reports. Troubleshooting nissan check engine light youcanic. Altima armada avenir bluebird cedric gloria cima cube elgrand fuga gtr. The service engine soon light came on our 2011 nissan altima so i headed to our local oreillys to have them read the computer. In this video i show you how i troubleshoot and replace a mass air flow maf sensor on a 2003 nissan altima. Why do i keep getting a p0101 code in my 2011 nissan sent. The mass air flow maf sensor measures the amount of air entering the engine. For about 6 months, i was enjoying the deep sound the engine made when i accelerated.
Had this problem for two years, 3 maf sensors and 4 mechanics later it turns out it was a dirty throttle body that was not letting the air intake to. Your satisfaction with your vehicle and your nissan dealer are. Choose top quality brands a1 cardone, api, beck arnley, carquest, diy solutions, delphi, hitachi, jet. Buy a 2011 nissan altima air mass sensor at discount prices. Brands include but are not limited to toyota, infiniti, nissan, jaguar, audi, mercedes, dodge. A bad oxygen sensor, dirty mass air flow sensor or an engine misfire will also cause this. Nov 29, 2009 im new to posting in this forum but ive owned a 1992 q45 for the past 11 years. Nissan altima mass air flow sensors are commonly misdiagnosed. Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Altima mass air flow sensors best mass air flow sensor for. How to clean the mass air flow sensor code p0101 on nissan altima. The sensor was brand new and only in the car for 10 miles when the code came up again. If the code comes back, it may be necessary to replaced the mass air flow sensor. P0101 2011 nissan altima sedan mass air flow circuit.
So if you know the problem of your car, just come to nissan parts deal to find the oem nissan altima mass air flow sensor you need. A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly. You can hardly diagnose a maf sensor on symptoms alone. How to replace maf mass air flow sensor 20 nissan rogue altima. Nissan service manuals purchases, downloads, and maintains a comprehensive directory of nissan factory service manuals for use by our registered members. Then shop at 1a auto for a high quality aftermarket nissan altima mass air flow meter replacement, at a great price. Jun 19, 2019 yesterday, i just replaced the mass air flow sensor in my nissan sentra 2011. P0101 2011 nissan altima air mass sensor problems the. Jul 09, 2018 short video manual of maf sensor removal on 2. P0103 2011 nissan altima sedan mass air flow sensor circuit. The temperature of the hot film is controlled by the ecm a certain amount. How to clean the mass air flow sensor code p0101 on. Details about oem mass air flow maf sensor meter for nissan gtr pathfinder quest rogue sentra. Once i did that my engine light went off and was running well.
Buy a 2011 nissan sentra air mass sensor at discount prices. In this guide, you will learn about the nissan mass air flow maf sensor, a common problem with nissan maf, how to diagnose it, replace and carry maf relearn procedure. How to fix maf sensor check engine light on 2011 nissan. A faulty maf sensor can cause your vehicle to run too rich or run too lean. I am assuming that they achieved this conclusion because of what the data monitor print out see attached picture stated because at no time while driving in the last 34. Apr 07, 2016 p0101 nissan diagnose and fix a p0101 nissan trouble code. It measures the intake flow rate by measuring a part of the entire intake flow. While plugged in, there is erratic nondetectable voltage, onoff, onoff. Symptoms of a faulty mass air flow sensor a faulty mass airflow sensor will cause problems similar to low compression or low vacuum, and will also show symptoms similar to when your vehicle has low fuel pressure from a faulty fuel pump. P0103 2011 nissan altima sedan tech notes before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Needless to say, if the car is that tempermental, i wont be buying a another nissan again. Choose top quality brands a1 cardone, api, beck arnley, carquest, delphi, hitachi, jet chips, replacement. How to fix maf sensor check engine light on 2011 nissan altima. What to look for, and how to interpret your results.
The most common symptoms from a bad mass air flow sensor are slow acceleration and reduced engine power. When the air flow sensor signal varies from the expected range, the pcm records a fault and stores the corresponding trouble code, illuminating the check engine light on the dash. Refer to a vehicle specific repair manual to determine which is the b circuit in your application. Oct 11, 2018 it is important to complete the entire diagnostic process when diagnosing p0171. Check your repair manual, ask at your local auto parts store, or search online for. P0101 2011 nissan altima sedan description the mass air flow sensor is placed in the stream of intake air. What is mass air flow sensor in a car, problems, symptoms, mass air. Your pathfinder maf sensor is a five pin unit thats mounted to your maf housing. With the nissan altima, p0101 means the the mass air flow maf sensor has a rangeperformance problem. We will cover exactly what that means and potential fixes for it below.
Nissan altima questions mass airflow sensor computer. Dec 17, 2018 this causes the actual air flow to be higher than the mass air flow sensor measures. Yesterday, i just replaced the mass air flow sensor in my. Nissan mass air flow sensor symptoms cleaning youcanic. Today, after their diagnostic check, they deem that the mass air flow maf sensor is bad. P0101 2011 nissan altima sedan meaning the mass air flow sensor is placed in the stream of intake air. This sensor s primary job is to monitor the position of the throttle pedal and send an electronic signal to open the throttle body as you depress the gas pedal.
If the evaporator temperature switch fails or has any issues that causes it to send an incorrect signal to the ac system, it can affect the systems ability to produce cold air. Be sure to consult your owners manual, a repair guide, an autozoner at a store near you, or a licensed, professional. Jan 19, 2016 todays modern cars, trucks, and suvs are all equipped with an electronic throttle control system that contains an accelerator pedal position app sensor. A p0101 trouble code is defined as p0101 for mass air flow sensor maf stored in the ecm. As a result, a bad mass air flow sensor causes various driveability problems, including a. How to troubleshoot a mass airflow sensor axleaddict. You may have a situation when your engine is running. The effect of a vacuum leak is more noticeable at idle, when the air flow is lower. Instead of a map sensor, most modern vehicles use a mass air flow maf sensor that the computer uses to calculate air flow along with engine rpm. Sometimes the hardest part of chasing driveability problems is. P0101 nissan meaning the mass air flow sensor is placed in the stream of intake air. The symptoms of a bad mass air flow sensor autozone. The nissan pathfinder maf sensor is a vital part of how your engine operates, and without a properly working mass air flow sensor, your 3. How to tell if your mass air flow sensor is bad on your car.
The heater blower motor blows the 2 15 amp fuses when put on high setting. The symptoms are typical of blocked air filter or a faulty mass air flow meter. Nissan altima 2011, black and silver mass air flow sensor by spectra premium. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor. The contamination can come in the form of spider webs, potting compound from the maf sensor itself, dirt that gets attached to oil on the. Basically this means that there is a problem with the mass air flow maf sensor or circuit. Today, i was sitting at idle in park and the rpms were high and fluctuating with my air conditioner on it died. P0101 nissan mass air flow circuit rangeperformance. A bad maf sensor is fairly easy to detect from the very beginning. A problem with the air flow sensor could also alter the shifting pattern of the automatic transmission. While we wouldnt prevent anyone from using this information, wed hope you would appreciate our efforts enough to frequent the forums here, rather than using them as a.
Unfollow nissan altima mass air flow sensor 2011 to stop getting updates on your ebay feed. First, i thought it was the maf sensor, so i cleaned it. Sideimpact air bag pressure sensor drivers side shown. Back in march of 2015 on a colder day below 20 degrees i left work, and within about 1 mile, my service engine soon light appeared while stopped at an intersection. You just need to be able to recognize the symptoms as they occur so that you will know to associate them with a possibly faulty mass air flow sensor. The mass airflow sensor maf in your nissan vehicle measures the amount of air going into the engine. With a new mass air flow sensor for nissan altima from autozone, its easy to maintain your rides engine power and gas mileage. My check engine light came on and the reading was p0101. I also changed the connector for the mass air flow sensor.
Nissan p0100 mass air flow or volume air flow sensor circuit. Symptoms of a bad or failing throttleaccelerator pedal. P0101 2011 nissan altima sedan mass air flow circuit range. A change in fuel economy is the only way to detect that there are some problems with the hot wire. Cleaning maf sensordebugging p0101 2011 nissan sentra. Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. How to detect and clean a faulty mass airflow sensor. At around 90k it came back but air filter change didnt clear it and i tried using maf sensor cleaner on both sensors and i must have damaged the other because i got the p0101 and p0101bi.
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