I am searching for a new O2 Sensor for a 2002 Oldsmobile Alero. There are two, one before and one after the Cat. The front one is throwing codes, causing a failed inspection. So, in my search, I ran into a confusing aspect of my search.
Looking for parts online, it says VIN “F” or VIN “T” for the O2 sensors I’m finding.
I am guessing that the car is an “F” as 1G3NL52F62C435322 is the VIN number.
Am I correct in that assumption?
Also, if anyone is familiar with O2 Sensors, is one brand just as good as the next? I found one on ebay for $45 and yet there are others that are $100…