If your check engine light is on you could have a bad mass air flow sensor. Jun 19, 2019 yesterday, i just replaced the mass air flow sensor in my nissan sentra 2011. 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. I have replaced both the resistor and the relay still blowing the fuses on high setting. 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. One part of your nissan altima is the mass air flow sensor. How to troubleshoot a mass airflow sensor axleaddict. What to look for, and how to interpret your results. Nissan altima questions check engine light on, replaced maf. A change in fuel economy is the only way to detect that there are some problems with the hot wire. Need to replace a defective mass air flow maf sensor in your nissan altima as soon as possible.
Nissan altima sentra mass air flow sensor 1aeaf00031 does not fit your. His began his writing career writing service manuals at chilton book co. 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. Nissan altima questions check engine light on, replaced. Nissan altima mass air flow sensor replacement nissan. Both nissan and your nissan dealer are dedicated to serving all your automotive needs. 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. 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. 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. P0101 nissan mass air flow circuit rangeperformance. Brands include but are not limited to toyota, infiniti, nissan, jaguar, audi, mercedes, dodge. We will cover exactly what that means and potential fixes for it below. How to clean a nissan mass air flow sensor it still runs.
I also changed the connector for the mass air flow sensor. This causes the engine computer to miscalculate the amount of injected fuel. Nissan p0100 mass air flow or volume air flow sensor circuit. P0102 2011 nissan altima sedan mass or volume air flow. Sideimpact air bag pressure sensor drivers side shown. 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. Cleaning maf sensor debugging p0101 2011 nissan sentra.
First, i thought it was the maf sensor, so i cleaned it. Nov 29, 2009 im new to posting in this forum but ive owned a 1992 q45 for the past 11 years. The temperature of the hot film is controlled by the ecm a certain amount. Some vehicles come equipped with both a map and maf sensor, usually forced induction systems like turbocharged and supercharged models. Nissan mass air flow maf p1102 diagnosis and replacement. A p0101 trouble code is defined as p0101 for mass air flow sensor maf stored in the ecm. 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. Nissan altima sedan,20 nissan almera,20 nissan 370z,2012 nissan. P0101 2011 nissan altima sedan description the mass air flow sensor is placed in the stream of intake air. The effect of a vacuum leak is more noticeable at idle, when the air flow is lower.
Symptoms of a bad or failing evaporator temperature sensor. I wanted to clean the air flow sensor in the 2011 mazda 2 but cant unplug the sensors electrical connector. 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. The symptoms of a bad mass air flow sensor autozone. With a new mass air flow sensor for nissan altima from autozone, its easy to maintain your rides engine power and gas mileage. My friend put the computer on it said the mass air flow sensor was bad. P0101 2011 nissan altima sedan meaning the mass air flow sensor is placed in the stream of intake air. Once i did that my engine light went off and was running well. 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. Unfollow nissan altima mass air flow sensor 2011 to stop getting updates on your ebay feed.
Spectra premiums complete line of new mass air flow sensors, featuring ceramic pc boards to ensure premium performance and durability. How to troubleshoot a mass airflow sensor in a few simple steps. Needless to say, if the car is that tempermental, i wont be buying a another nissan again. Sometimes the hardest part of chasing driveability problems is. Cleaning maf sensordebugging p0101 2011 nissan sentra. Remove the electrical connectors from the sensor before you attempt to replace it. Jul 09, 2018 short video manual of maf sensor removal on 2. These symptoms indicate a maf that has a contaminated hot wire. These leaks can cause similar symptoms as a malfunctioning mass air flow sensor. Your pathfinder maf sensor is a five pin unit thats mounted to your maf housing. Bopart mass air flow sensor meter maf 226807s000 for nissan altima infiniti g37, 200720 sentra, 20052015 xterra, 20032009 350z 3. Altima mass air flow sensors best mass air flow sensor for. Symptoms of a bad or failing throttleaccelerator pedal. Buy a 2011 nissan sentra air mass sensor at discount prices.
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. It measures the intake flow rate by measuring a part of the entire intake flow. Basically this means that there is a problem with the mass air flow maf sensor or circuit. 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. Nissan altima 2011, black and silver mass air flow sensor by spectra premium. Oct 11, 2018 it is important to complete the entire diagnostic process when diagnosing p0171. 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.
Before replacing the mass air flow sensor check for air leaks in the connecting air ducts and intake manifold. P0101 nissan ricks free auto repair advice ricks free. How to clean the mass air flow sensor code p0101 on nissan altima. A problem with the air flow sensor could also alter the shifting pattern of the automatic transmission. 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 most common symptoms from a bad mass air flow sensor are slow acceleration and reduced engine power. For about 6 months, i was enjoying the deep sound the engine made when i accelerated. Nissan altima questions mass airflow sensor computer. A bad oxygen sensor, dirty mass air flow sensor or an engine misfire will also cause this. My check engine light came on and the reading was p0101. 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.
These bolts screw onto the air filter housing, but you will not need to remove any of it to test your maf. As we all know, the prefect ration for oxygen and gas in the engine is 14. With the nissan altima, p0101 means the the mass air flow maf sensor has a rangeperformance problem. How to fix maf sensor check engine light on 2011 nissan altima.
The term lean means too much air and too little fuel. 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. 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. Dec 17, 2018 this causes the actual air flow to be higher than the mass air flow sensor measures. No do i need to bring it to the dealerschip to hav it answered by a verified nissan mechanic we use cookies to give you the best possible experience on our website.
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. How to tell if your mass air flow sensor is bad on your car. I cleaned old maf sensor, put it back, and cleared the code. A bad maf sensor is fairly easy to detect from the very beginning. 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. Altima armada avenir bluebird cedric gloria cima cube elgrand fuga gtr.
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. While plugged in, there is erratic nondetectable voltage, onoff, onoff. How to test a nissan pathfinder maf sensor my pro street. The symptoms are typical of blocked air filter or a faulty mass air flow meter. 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. 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. The mass air flow maf sensor measures the amount of air entering the engine. The mass air flow sensor is designed to measure the amount of the air an engine takes in. Plug the electrical connector until it locks in place.
Failed mass air flow sensor may cause driveability issues. The heater blower motor blows the 2 15 amp fuses when put on high setting. Off topic section 20022006 nissan altima discussion 2. Common problems that trigger nissans check engine light to stay or flash. Today, after their diagnostic check, they deem that the mass air flow maf sensor is bad. The 2011 nissan altima service engine soon light came on. Symptoms this is a list of common symptoms you will notice when your nissan maf sensor fails. P0101 2011 nissan altima sedan mass air flow circuit.
You must have simple understand of your altima mass air flow sensor that you can find some problem correct in time. P0101 2011 nissan altima air mass sensor problems the. Nissan mass air flow sensor symptoms cleaning youcanic. As a result, the pcm miscalculates the amount of the injected fuel, and the engine runs lean. As a result, a bad mass air flow sensor causes various driveability problems, including a.
P0101 nissan diagnose and fix a p0101 nissan trouble code. 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. Apr 07, 2016 p0101 nissan diagnose and fix a p0101 nissan trouble code. Why do i keep getting a p0101 code in my 2011 nissan sent. You can hardly diagnose a maf sensor on symptoms alone. Your satisfaction with your vehicle and your nissan dealer are. A faulty maf sensor can cause your vehicle to run too rich or run too lean.
It consists of a hot film that is supplied with electric current from the engine control module. Nissan altima mass air flow sensors are commonly misdiagnosed. 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. Check your repair manual, ask at your local auto parts store, or search online for. You may have a situation when your engine is running. The mass airflow sensor maf in your nissan vehicle measures the amount of air going into the engine. P01 2011 nissan altima sedan intake air temperature. Why do i keep getting a p0101 code in my 2011 nissan sentra asked by danish.
However, in the past 2 weeks i have been regretting it. The maf mass air flow sensor is a sensor mounted in a vehicles engine air intake tract. A contaminated or failed mass air flow sensor cannot measure the amount of air flow correctly. Choose top quality brands a1 cardone, api, beck arnley, carquest, diy solutions, delphi, hitachi, jet. Yesterday, i just replaced the mass air flow sensor in my. Intake air temperature iat sensor is built into the mass air flow sensor. One of the first symptoms of a potential problem with the evaporator temperature switch is no cold air from the ac system. This acura engine has both a maf and a manifold absolute pressure map sensor.
Buy a 2011 nissan altima air mass sensor at discount prices. This trouble code can be retrieved with a scan tool. P0101 nissan meaning the mass air flow sensor is placed in the stream of intake air. Refer to a vehicle specific repair manual to determine which is the b circuit in your application. 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. 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. Nissan sentra failed mass air flow sensor may cause driveability issues 189 reports. The mass air flow maf sensor can fail, causing various drivability problems. What is mass air flow sensor in a car, problems, symptoms, mass air. I got home and read the code, and discovered it was a p0101 code mass or volume air flow circuit. 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.
How to replace maf mass air flow sensor 20 nissan rogue altima. 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. 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. Here are some of the most common symptoms of a faulty mass airflow sensor. P0101 2011 nissan altima sedan mass air flow circuit range. Troubleshooting nissan check engine light youcanic. Be sure to consult your owners manual, a repair guide, an autozoner at a store near you, or a licensed, professional. Follow instructions below to read nissan check engine light codes yourself with an. 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. 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. Details about oem mass air flow maf sensor meter for nissan gtr pathfinder quest rogue sentra. How to fix maf sensor check engine light on 2011 nissan. If the code comes back, it may be necessary to replace the maf sensor. The sensor was brand new and only in the car for 10 miles when the code came up again.
Learn about this problem, why it occurs, and how to fix it. A p0101 nissan trouble code is very common and there are two fixes for it. 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. Choose top quality brands a1 cardone, api, beck arnley, carquest, delphi, hitachi, jet chips, replacement. How to clean the mass air flow sensor code p0101 on. Today, i was sitting at idle in park and the rpms were high and fluctuating with my air conditioner on it died. P0101 nissan ricks free auto repair advice ricks free auto. Altima mass air flow sensors best mass air flow sensor. 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.
Shouldnt the mass air flow sensor dictate the voltage going out to the ecm. This will restrict air flow to the engine resulting in an incorrect fuel mix. P0103 2011 nissan altima sedan mass air flow sensor circuit. If the code comes back, it may be necessary to replaced the mass air flow sensor. Problems with mass air flow sensors are common in many cars, including bmw, gm, volkswagen, mazda, toyota, nissan and other.
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