Subaru Impreza check engine light cleaning the mass airflow sensor

This easy fix saved me tons of money on parts and was a permanent solution. I cleaned the mass airflow sensor with the correct cleaner from the parts store. It’s called “mass airflow sensor cleaner.” Do not use brake cleaner or anything else as it can damage the sensor. In my opinion it’s the first thing to do if you get a check engine light related to O2 sensors or catalytic converter. It worked on my 2009 Subaru Impreza (outback sport model) but could work on other vehicles as well. Also, don’t forget to change your air filter while you’re in there. Hope this helps and thanks for watching.

[@andrewdurie942]

How long did it take for the engine light to go off after you did this?

[@maryjohatchett3126]

Did it wind up helping?

[@jasonkranz8672]

It helped the first time. I ended up replacing it with a new dealer part and the light has been off for four months. I tried a cheap one that claimed to be new which didn’t work. The dealer part was expensive but it sure is nice to have that light off.

[@qfour22]

Totally helped when my wrx was giving me trouble. Thank you SO MUCH for the tip!

[@nelsonm8949]

@@qfour22cleaning your sensor helped you???