how to reset check engine light after replacing mass air flow sensor

The transformation was remarkable - the engine seemed to pull with. Disconnect mass air flow sensor harness connector.

F I X Check Engine Light Problem How To Clean Mass Air Flow Sensor Isuzu Honda Maf Sensor Unit Youtube

Tighten the mounting screws to 27 in lb 3 Nm.

. 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. When replacing the sensor especially at home most people do not accurately make the replacement causing the check engine light to appear again. This is because the ECU will detect an out of range value coming from the MAF sensor and the check engine light is its way of letting you know that something is wrong.

Restart engine and let it idle for at least 5 seconds. Then vacuum out all dustdirtdebris found inside both halves of the air filter housing. I went and replaced the sensor and then cleared the code.

Keith December 24 2018 640pm 2. Idling The Engine. A replacement mass air flow sensor can cost anywhere from 20 to 600.

Not resetting the cars computer ECU The second and the. Only show this user. That brings up the question of can your car run without the mass air flow sensor.

Check engine light on for mass air flow sensor after already replacing. Can someone please help. Keeping the battery unhooked for longer than 10 minutes wont hurt.

The Check Engine light will blink then shut off. Start engine and warm it up to normal operating temperature. A MAF sensor is usually placed in-line immediately after the air filter and takes a reading of how much air is entering the engine.

If the computer is giving you codes related to the MAF sensor then you will want to check into the electrical wiring for the circuit. Check if the engine light is still on after the Mass Air Flow Sensor was replaced. However the check engine light just came back on again and is reading the same code for the mass air flow sensor.

DiY Cleaning Of MASS AIR FLOW SENSOR and AIR FILTER replacement - MOST COMMON CHECK ENGINE LIGHT PROBLEM - Attention - ONLY USE _ CRC Mass air Flow Cleaner o. The engine still drove like it was a bit breathless so I bit the bullet and bought a brand new MAF sensor. Turn the ignition to the On position but dont crank the engine it wont start anyway.

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. If your check engine light is off Your ECU has reset. The Check Engine light will blink then shut off.

First to cool your cars engine down you need to turn it off. Check engine light on for mass air flow sensor after already replacing. I bought a 2004 X3 recently and even though the Check Engine light was not on I did buy a can of Mass Air Flow sensor cleaner and cleaned the MAF.

One of the most common causes of check engine popping up after MAF sensor replacement is having a faulty replacement. Answer 1 of 2. This is very important if you have just used the car.

Wait five minutes and reinsert the fuse. Check Engine Light appearing on the dashboard. Before replacing the mass air flow sensor try replacing the air filter and cleaning the air flow sensor.

Turn ignition switch OFF. Then it goes into learn mode and may take a little while before it learns all the parameters of the new MAF sensor. You will also want to make sure the air intake passages are clear and that the air filter is new or clean.

A bad mass air flow sensor will usually trigger a check engine light. You now have to take the MAF out to clean it. Up to 8 cash back These codes are a way of helping you or the technician to determine what system s are malfunctioning.

This will indicate that your ECU has been reset. After the engine cools down you can go to the mass air flow sensor location and remove the connector from the sensors harness. Stop engine and reconnect mass air flow sensor harness connector.

Bad Mass Air Flow Sensor No Check Engine Light Car Care Lab