Notifications You must be signed in to change notification settings The oxygen (O2) sensor in your car's engine system is a vital component responsible for measuring the oxygen level in exhaust gases.

Modern car engine control systems rely on input from several sensors to regulate the engine’s performance as well as its emissions and other vital functions. When these sensors fail to provide ...

I have a 1997 Altima. Sometime back, I had the "check engine" light come on. The code indicated that it was the "mass air flow sensor." It is an expensive part to replace and I decided to delay the ...