I need to get my car inspected - 2001 Nissan Sentra. Check engine light is on. Code is P0057 - O2 Sensor Bank. This part was replaced 15 months ago, and the check engine light has come on intermittently ever since. My mechanic cleared the code this morning - I hope I can get 30 miles or so on it and get it inspected before the light comes back on.
Any thoughts about what else to try?