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

Car runs fine 1 Answer I was only going about 2 miles an hour went thru a cracked piece of driveway in shopping center bit of a pot hole check engine light came on immediately after. Make sure DTC P0102 is displayed.

Most Common Reasons Your Check Engine Light Is On

Check the codes yourself.

. Keeping the battery unhooked for longer than 10 minutes wont hurt anything. Then it goes into learn mode and may take a little while before it learns all the parameters of the new MAF sensor. Once it is done see if the engine check light is still coming on or not.

Use a ratchet and socket or Torx bits to remove the bolts securing the MAF sensor to. A auto shop told me that one of the check-engine codes was for the mass airflow sensor. Is there any way to reset the light without going to the dealer.

Replace the engine light once the Mass Air Flow Sensor has been replaced. 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. Quick test to tell if Mass Air Flow Sensor is bad or dirty which could be causing your car or truck to run bad or keep cutting off.

Capacitor and resistors still retain power after the battery is disconnected. I went and replaced the sensor and then cleared the code. You can attach your cables back and turn your car on.

Stop engine and reconnect mass air flow sensor harness connector. 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. This needs to drain.

My car has 129000 miles. Switching the ignition on and off is also one method of hard reset without disconnecting batteries. How Do You Reset Check Engine Light After Replacing Maf Sensor.

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 you leave the battery unhooked for 10 minutes it is possible to reset the entire system. Your trying to drain all the power the car still has stored inside it.

When that has been done. I need to get this fixed soon so I can get my emission test passed. Start engine and warm it up to normal operating temperature.

How do you reset check engine light after replacing MAF sensor. Disconnect mass air flow sensor harness connector. Turn ignition switch OFF.

If your check engine light is off Your ECU has reset. The MAF or mass airflow sensor measures the amount of air flowing into your engine and helps the computer to determine how much fuel to inject into the combu. All I just cleaned my mass air flow sensor on my 06 bmw x3 but my service engine light is still on.

Check if the engine light is still on after the Mass Air Flow Sensor was replaced. Autozone and other places will plug in to your OBDII port for free or you can buy a code scanner yourself. The reason you need to do this is for the car computer to reset to its factory setting and forget previously learned parameters.

I hit a bump yesterday and the check engine light came on. Once you replace your mass airflow sensor you will have to disconnect your car battery for some minutes I recommend 10 to 15. Put the keys in your ignition and turn your ignition on and off consecutively after a second in each step.

The entire system can be reset by unhooking the battery and leaving it unhooked for 10 minutes. Restart engine and let it idle for at least 5 seconds. It wont harm anything if you keep the battery unhooked for longer than 10 minutes.

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. If not continue to Step 5. Check engine light on for mass air flow sensor after already replacing.

Erase the DTC memory. Use MAF sensor cleaner only to clean the sensor allow 10 minutes for it to dry then put back together and see if that resolves your issues. 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.

Turning the Ignition On and Off. Make sure no other codes were present that may have came back.

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