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Bad Mass Air Flow Sensor? (7 Symptoms with Fixes) | The ...

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22/10/2018· 03/31/2021 10/22/2018. 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. The job of the mass air flow sensor ...

Do I need to disconnect battery to change MAF sensor?

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The original mass air flow sensor needs to be removed. A. The battery needs to be disconnected from the ground cable. Accidental starting and injury are prevented by this.

How to Reset the ECU After Changing an O2 Sensor | It ...

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The O2 sensor then sends information to the electronic control unit, or ECU, the vehicle''s computer. The ECU then adjusts the airtofuel ratio to optimize the fuel combustion. Sometimes an O2 sensor fails, and you need to replace it. Once you''ve replaced your vehicle''s O2 sensor, you''ll need to reset the ECU so it can properly gather ...

do I have to reset error codes after replacing oxygen sensors

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Hey I’m about to change my head gasket on my BMW 328I sedan and all my O2 sensors how should I do that without messing up anything l I hear you have to reset the sensor thing so it works with the car and then I hear it runs horrible if you can’t do that I don’t know how just a bunch of stuff so I’m just trying to figure out the best way to do all three of those things without getting ...

How to Troubleshoot a Mass Airflow Sensor AxleAddict

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Answer: Most likely, the MAF sensor is bad. Question: My mass air flow sensor on an 88 Camaro reads 5volt reference between signal and ground while running and unplugged, on the ECM side, at idle. Shouldn''t the mass air flow sensor dictate the voltage going out to the ECM? While plugged in, there is erratic nondetectable voltage, on/off ...

P0171 and P0174 Codes Don''t change an Oxygen Sensor ...

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16/9/2019· P0171 and P0174 Codes – Don’t change an Oxygen Sensor Before Reading This. So your car’s CEL (always check Engine Light) is on and also you had the codes scanned at a local parts shop. (Or maybe used your own OBD scanner to extract the car faults). Your car or truck has either a P0171, P0174 lean fault code or both stored in the pc, these ...

What Happens If You Disconnect Mass Air Flow Sensor ...

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22/2/2021· Well, the answer to that is no. If you disconnect the mass airflow sensor, then the car should keep running and still be able to start normally. This is because the computer in the car if it does not receive a reading from the mass airflow sensor, will estimate and supply a number that it thinks it is supposed to have.

SOLVED: Do I have to reset the computer after installing a ...

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21/5/2009· Contributor. 2 Answers. Re: Do I have to reset the computer after installing a... No, after you change the mass air flow sensor, the problem is fixed. The check engine light may stay on for a few times after you start the car. After several starts, the check engine prom, will eventually correct itself, and reset.

Is resetting ECU necessary after cleaning MAF? | Subaru ...

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20/4/2012· I''m coming up on 30,000 miles for my 08 WRX (no mods). I''m going to be replacing the air filter myself and have my mechanic do the other stuff. I read it''s a good idea to clean the MAF sensor while I''m changing the air filter. I''ve read conflicting advise on resetting the ECU after I do this. Is...

Want Mass Air Flow Sensor and How to reset computer ...

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1/1/2009· Don''t know if the A1 Cardone Mass Air Flow Sensor is the way to go nor if it will fit with the stillen setup. I was also told that I should have reset the computer when I installed the stillen not sure how to do that. Any help would be great!!! Top. Q45tech.

Do I need to reprogram my computer after replacing my MAF ...

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21/8/2014· The powertrain control module uses the oxygen sensor to calculate the Air/Fuel ratio of the engine. The computer has recognized a rich or lean condition on one engine bank only. Probable cause(s): If bank one and two codes set together suspect fuel pressure or MAF sensor. Oxygen sensor defective. Ignition misfirerepair. Fuel injector problem ...

Do i need to reset ecu after changing maf? Does ecu need ...

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do i need to reset ecu after changing maf? Does ecu need to relearn? I unplugged battery, then replaced MAF sensor. So far, the car is not dying and leaving me on the side of the road as before. still experiencing very noticeable power loss starting out, and ESPECIALLY uphill. Runs very well at higher speeds. Strong passing gear.

SOLVED: Do I have to reset the computer after installing a ...

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21/5/2009· 2 Answers. Re: Do I have to reset the computer after installing a... No, after you change the mass air flow sensor, the problem is fixed. The check engine light may stay on for a few times after you start the car. After several starts, the check engine prom, will eventually correct itself, and reset. Posted on Jun 21, 2009.

Mass Air Flow Sensor: The Complete Guide to Upgrading Your Car

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21/4/2017· The mass air flow sensor itself impedes air flow slightly; Creates a slight time lag because of the small added distance the air has to travel to go through the mass air flow sensor. Examples of Mass Air Flow Sensors Camaro JET Mass Air Flow Sensor Upgrade 69143 Fits 2010 2015 Camaro SS Models. Buy on Amazon. JET is no stranger to performance.

How to Bypass the Cold Air Intake Sensor | It Still Runs

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The air is then mixed with the fuel, and combustion is the result. This is what propels the car. There is a sensor on the air intake called the mass air flow sensor. This sensor calculates how much air to mix with the fuel. If you are using a cold air intake, the MAF sensor might not be calculating properly.

mass airflow sensor; any computer programming needed?

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15/2/2010· I was warned that that would be the case even after replacing the MAF, that the computer would need to be reset to clear the error code. Am taking it in Monday anyway it''s a new car for me, so I want it serviced and had scheduled an appointment Friday already.

How to Replace a Mass Air Flow Sensor Advance Auto Parts

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15/1/2019· If you''ve got a P0101 code, it''s likely time to replace the mass air flow (MAF) sensor. Here''s a look at how mass air flow sensors work, symptoms of failure, and a stepbystep guide on how to replace this sensitive part. This is a good job for DIYers and shouldn''t take too long. How a Mass Air Flow Sensor Works. Like its name suggests, this is ...

I just changed the MAF sensor and as soon as i changed it ...

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12/2/2008· Here is the tsb on replacing the Mass Air flow sensor. You only have to reprogram the computer if necessary. Here is the instructions. See for yourself. 1. Remove the air filter element. Then, vacuum out all dust/dirt/debris found inside both halves of the air filter housing.

The Symptoms of a Bad Mass Air Flow Sensor AutoZone

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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. You’ll notice if the tailpipes eject …

Changed MAF about 2 weeks ago, light still on ...

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24/12/2018· When you change a MAF sensor, you need to disconnect the battery for about 10 minutes so the computer forgets the learned parameters and resets to the factory parameters. Then it goes into learn mode and may take a little while before it learns all the parameters of the new MAF sensor.

Mass airflow sensor computer reset, Nissan Altima ...

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26/5/2017· I replaced my mass air flow sensor on my nissan sentra 2011 sr but the check engine light came back on they told I have to reset the sensor. 13 people found this helpful. I have a 2009 Nissan Altima and mine would not accelerate neither in reverse or drive. Found a mosquito on the mass airflow.

Check engine light on for mass air flow sensor after ...

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26/2/2019· Check engine light on for mass air flow sensor after already replacing? 16 Answers. I have a 2015 Nissan Sentra SR and a while back the check engine light came on and read code P0101 for mass air flow sensor. I went and replaced the sensor and then cleared the code. However, the ch...

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