[Surfnbiker]

So I decided to get the factory ACDelco O2 sensor. Disconnected the battery, installed the new O2 sensor, let the car sit for an hour, connected the battery before I started it I plugged in the scan tool and without touching a button it read "Pass, no codes." Ordinarily it would immediately tell me if there were an issue. I then started the car and immediately noticed a difference. First the SES light was off then the idle was back to normal. So I'll keep my fingers crossed and cycle the ignition a few more times before taking her in to smog, but so far so good...