Noob with a question,

Replaced factory O2 sensor under warranty on my 2003 RSX Automatic in 2006, now that one has gone bad, but instead of lasting three years, this one has lasted only 1 year. Getting a bad batch of O2 sensors would make sense, if, everyone else had a defective sensor as well, which is not the case. The replacement last less time than the original and the dealer has no idea what is causing them to go bad. Did some searching and couldn't find what would cause an O2 to malfunction that fast, dealer blamed it on not using premium fuel, but the base edition doesn't require premium so I pulled the BS flag on the dealer. Engine light came on both times when the O2 started to go bad.

Thanks in advance for the replies.
Seahawk02

 

lemon, return the car.

other than that, too little ign timing and too rich will kill o2 sensors.

 

Timing can be adjusted, the only problems I've had in almost 5 years have been the 2 O2 sensors going bad, I don't think I'm throwing in the towel or going to jump to the conclusion that the car is a lemon over that.