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.

I live in New Jersey, one of the states that mandates inspection for all vehicles newer than 1995. My daily driver, a Jeep Cherokee, happens to be a 1996 model year with an OBD-II sensor, meaning I ...

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 ...