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

A bad MAF sensor would alter the ECU algorithms so when you install a new one. Of the thousands of possible codes that can be thrown it is fairly unlikely that the MAF is the cause.

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

I did find a skinned wire that looks like a rodent got it but I soldered it back together so it is solid.

. After the engine cools down you can go to the mass air flow sensor location and remove the connector from the sensors harness. After about five minutes turn on. Remove the connector with the harness of the sensor.

Wait five minutes and reinsert the fuse. Then move the gear to drive and turn off the car. If you need to replace it with a new one install the new sensor instead of the old MAF sensor.

Start engine and warm it up to normal operating temperature. Do not touch the filaments while cleaning it. A bad mass air flow sensor will usually trigger a check engine light.

How Do You Reset Check Engine Light After Replacing Maf Sensor. I have changed my mass air flow sensor twice with OEM parts reset the code multiple times put a new KN air filter in and the light still comes with in 3 or so miles. The check engine light is one of the first signs that your throttle position sensor may be failing.

Drove car for 10. The MAF sensor is one of the prominent sources the ECU gets the information signals it uses to decide the air-fuel ratio for the engine. Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step.

There are many possible causes for the Check Engine Light to come on besides the mass airflow sensor. You now have to take the MAF out to clean it. Turn the ignition to the On position but dont crank the engine it wont start anyway.

Idling The Engine. You will also want to make sure the air intake passages are clear and that the air filter is new or clean. First check to see what codes are being set which cause the Check Engine light to illuminate.

Had it diagnosed as running to lean sensor bad. Turn off the engine and let it cool down if youve been driving. The Check Engine light will blink then shut off.

If it is the MAF and cleaning it was unsatisfactory it will be need to be replaced. An Illuminated Check Engine Light. The MAF is located along the intake pipe directly after the air filter.

These codes are a way of helping you or the technician to determine what system s are malfunctioning. 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 engine light on for mass air flow sensor after already replacing.

Read the codes before attempting repairs. First to cool your cars engine down you need to turn it off. Stop engine and reconnect mass air flow sensor harness connector.

This will indicate that your ECU has been reset. One of the most common causes of check engine popping up after MAF sensor replacement is having a faulty replacement. While pulling the connector squeeze the tab on either side of the harness.

Pull out the air flow sensor and clean it properly. Have the codes read before shooting in the dark. It could be as simple as your gas cap not being on tight or leaking.

This is very important if you have just used the car. Restart engine and let it idle for at least 5 seconds. Also the resetting starts by turning on the air conditioning and allowing the car to idle up to 1200rpm.

Stop engine and reconnect mass air flow sensor harness connector. 8 Jun 11 2011. Resetting the Mass Air Flow Sensor by Idling the Engine.

This method requires checking the mass air flow sensor when the engine light comes on. Asked by Visitor in Cedar Park TX on December 06 2018. Answer 1 of 2.

Check Engine Light appearing on the dashboard. DiY Cleaning Of MASS AIR FLOW SENSOR and AIR FILTER replacement - MOST COMMON CHECK ENGINE LIGHT PROBLEM - Attention - ONLY USE _. Disconnect mass air flow sensor harness connector.

Answer 1 of 2. Make sure you only pull on the connector and not the wires. I have a 2017 Titan XD with the Cummins.

If the check light is off you are ready to go but if it is still coming on get ready by reading the codes with a scanner instead. Once it is done see if the engine check light is still coming on or not. Please start your own thread.

If your hands slip off the connector it is good to wear gloves with a. This problem may or may not be caused by the mass airflow sensor. Disconnect the mass airflow sensor from the electrical connector.

Let it Go Off Itself. 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. If the Check Engine Light was out after you did the repair and came back on later after starting the car or driving than another problem may have popped up.

When replacing the sensor especially at home most people do not accurately make the replacement causing the check engine light to appear again. Turn ignition switch OFF. Plug in the MAF sensor and turn the engine on.

Make sure no other codes were present that may have came back. The check engine light can come on for several reasons but if its accompanied by any of the other symptoms on this list its worth investigating the throttle position sensor as a possible cause. If you dont have any contact cleaner on hand using WD-40 or another similar product will work in a pinch.

This is the most effective way to solve problems with the newly-installed Mass Airflow Sensor MAF Sensor. You now have to take the MAF out to clean it. Check engine light on for mass air flow sensor after already replacing.

How to reset check engine light works on any trucks cars suv mazda ford gm honda toyota chevy and what diagnostic tester meter tools used to reset warning la. Not resetting the cars computer ECU The second and the.

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