Hey guys so i had problems with my o2 sensor a couple of months ago. The car was bogging between 3,000-4,000 rpms so i replaced it with a oem one, and the whole time it was going bad it never coded. Now it has been 2 months and the o2 sensor is starting to go again its boggin between those rpms again. What causes the o2 to go is it running to lean, to rich, to much this or to much that.
Why is this going bad so soon???


thanks Spencer