HEY GUYS I CHANGED OUT MY 02 SENSOR LAST MONTH ...
2000 Nissan Altima
November, 13, 2012 AT 3:03 PM
Hey guys, I changed out my 02 sensor last month after getting the "o2 sensor upstream" engine code, what would cause the engine light to return with the same code after a few weeks. I ve considered vacuum leaks but is there anything further after that? Thanks