Review on 🌬️ Denso 197-6030 Mass Air Flow Sensor: Superior Performance & Reliability by Zack Block

This is a perfect fit for my Toyota Corolla, this part number was selected on the Denso website for my car model. Check the Denso website to ensure you are ordering the correct part number. I first cleaned the outside of the existing MAF sensor before removing it and waited a day to dry. This was done to prevent debris from getting into the hole when installing a new one. When I got my order and installed the new mass air flow sensor, the engine ran smoother, more powerful and there was a huge difference in performance before and after. I do NOT recommend attempting to clean an old MAF sensor, that was my mechanic's advice and I will do the same here. There is a rubber gasket around the perimeter of the sensor, even if you think you've cleaned it perfectly (you can easily damage it), the old one can pull air out of the gasket and the engine light is still on, the computer doesn't mix the air properly determine. There are also inner tube wires that need to be cleaned, and it is not possible to reach and clean these wires, it will be a waste of time and it can't work, long story short, buy a new one and see the performance difference. I believe this sensor should be updated every 50-80k miles to improve your car's performance. NOTE: Immediately after installing a new sensor, the check engine light does not go out. It took me 30 miles in two days, 4 cold starts to blow out the lamp. The mechanic said that you can disconnect the negative and then the positive battery and reset the light (be careful, some cars require you to enter radio codes when disconnecting the battery). Or you can go to your mechanic OR an Autozone store to have the light OR drive reset and wait a few days like I did.