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

Start engine and warm it up to normal operating temperature. Check engine light on for mass air flow sensor after already replacing.

How To Replace A Mass Air Flow Sensor

Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step.

. Connect the mass air flow MAF sensor electrical connector. Wait five minutes and reinsert the fuse. Check if the engine light is still on after the Mass Air Flow Sensor was replaced.

The codes are an essential tool in helping a technician detect a problem with the MAF sensor. The reason you need to do this is for the car computer to reset to its factory setting and forget previously learned parameters. Check if the engine light is still on after the Mass Air Flow Sensor was replaced.

Check for air leaks on or around any intake pipework using a good spraying of carb cleaner if the engine surges then thats the leak. You only have to reprogram the computer if necessary. Replace the engine light once the Mass Air Flow Sensor has been replaced.

The entire system can be reset by unhooking the battery and leaving it unhooked for 10 minutes. My mass air flow sensor on an 88 Camaro 28 reads 5-volt reference between signal and ground while running and unplugged on the ECM side at idle. Is there any way to reset the light without going to the dealer.

Here is the instructions. 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. Mass air flow sensor.

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. While plugged in there is erratic non-detectable voltage onoff onoff. The entire system can be reset by unhooking the battery and leaving it unhooked for 10 minutes.

Position the MAF sensor on the throttle body. Up to 8 cash back My car has 129000 miles. Once you replace your mass airflow sensor you will have to disconnect your car battery for some minutes I recommend 10 to 15.

When that has been done. Gently accelerate and decelerate the engine. That brings up the question of can your car run without the mass air flow sensor.

This needs to drain. Stop engine and reconnect mass air flow sensor harness connector. The entire system can be reset by unhooking the battery and leaving it unhooked for 10 minutes.

Each time it would go about one week before my check engine and slip indicator light would return with a p0101 code and the car would go into limp mode which prevents me from accelerating above 2500 rpm and to idle rough. Capacitor and resistors still retain power after the battery is disconnected. Turning the Ignition On and Off.

Keeping the battery unhooked for longer than 10 minutes wont hurt anything. A auto shop told me that one of the check-engine codes was for the mass airflow sensor. Remove the MAF sensor mounting screws.

Your car has a lot of sensors and this is just one that helps your car run properly. Keeping the battery unhooked for longer than 10 minutes wont hurt anything. Switching the ignition on and off is also one method of hard reset without disconnecting batteries.

I need to get this fixed soon so I can get my emission test passed. I have replaced my MAF sensor three times in the last seven months as recently as two weeks ago. Up to 20 cash back Here is the tsb on replacing the Mass Air flow sensor.

Then it goes into learn mode and may take a little while before it learns all the parameters of the new MAF sensor. Check if the engine light is still on after the Mass Air Flow Sensor was replaced. Once it is done see if the engine check light is still coming on or not.

Resetting the cars computer and ensuring all codes from the sensor are synched with the computer. Hence when some codes are not in sync with the vehicles computer you will have the check engine light showing up again. The greater the difference between them the greater the probability that you have a bad mass air flow sensor.

If you leave the battery unhooked for 10 minutes it is possible to reset the entire system. All I just cleaned my mass air flow sensor on my 06 bmw x3 but my service engine light is still on. Your trying to drain all the power the car still has stored inside it.

In this article we will look at what happens when you disconnect the mass airflow sensor. Tighten the mounting screws to 27 in lb 3 Nm. The mass airflow sensor is a key sensor in your car.

Keeping the battery unhooked for longer than 10 minutes wont hurt anything. It wont harm anything if you keep the battery unhooked for longer than 10 minutes. Disconnect the mass air flow MAF sensor electrical connector.

Turn the ignition to the On position but dont crank the engine it wont start anyway. Shouldnt the mass air flow sensor dictate the voltage going out to the ECM. Make sure DTC P0102 is displayed.

I went and replaced the sensor and then cleared the code. Install the MAF sensor mounting screws. Then vacuum out all dustdirtdebris found inside both halves of the air filter housing.

How Do You Reset Check Engine Light After Replacing Maf Sensor. How do you reset check engine light after replacing MAF sensor. Turn ignition switch OFF.

Erase the DTC memory. Remove the air filter element. Disconnect mass air flow sensor harness connector.

He told me that replacing the sensor was an option or another avenue was to first try cleaning it to see if the check engine light stayed on after cleaning. 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. The resulting lines should be similar increasing and decreasing simultaneously.

A replacement mass air flow sensor can cost anywhere from 20 to 600. Remove the MAF sensor from the throttle body. DiY Cleaning Of MASS AIR FLOW SENSOR and AIR FILTER replacement - MOST COMMON CHECK ENGINE LIGHT PROBLEM - Attention - ONLY USE _.

Cost of replacing A Bad mass air flow sensor. If your check engine light is off Your ECU has reset. The Check Engine light will blink then shut off.

You can attach your cables back and turn your car on. Reset code and drive vehicle. Restart engine and let it idle for at least 5 seconds.

How To Know If Maf Sensor Is Bad Or Good Test Mass Air Flow Sensor Code P0102 Youtube