OBDII O2 Sensor Not Ready

[littlex5]

Originally Posted by oldskewel

Almost certainly, that full drive cycle was not ever done in a single drive.

Good to know. I just can't figure out how to complete the drive cycle in one go especially when I live in a highly congested area...San Francisco Bay Area.

Originally Posted by oldskewel

Regarding CA allowing one monitor incomplete. I don't know definitively, but I have read that the EVAP monitor can be incomplete, but no others.

You're right, the guy at the SMOG test station told me not to worry about the evap monitor being not ready, but the O2 monitor has to.

Originally Posted by oldskewel

The sensors are pretty cheap - around ~$50+ for Bosch (OES) for my 2001 3.0i.

Good to know. I was worried about the cost. For those who live in California with a similar situation, there are a couple of assistant programs available that might be worth looking into...

https://asktheref.org/Services/Repair-Cost-Waivers

https://bar.ca.gov/Consumer/Consumer...stance_Program

Originally Posted by oldskewel

BTW, the biggest lesson I learned from my issues was to get on the smog check ASAP (i.e., as soon as the registration renewal arrives in the mail, vs. waiting for the deadline to approach). Having a time deadline waiting for things to reset or codes to appear sure made everything tougher.

Very good advice. I didn't do that and now I'm all stressed out.