I have a 2006 Honda Accord that needs a smog check done in CA. I took it down and was told the Catalytic Converter sensor was not ready.

The car sat for a few years with a dead battery. Since replacing the battery, I’ve driven a few thousand miles between highway and city, which everyone I’ve spoken to about this has said that should be way more than enough to reset the sensor.

I checked the drive cycle requirements and I’m fairly certain I’ve completed everything on the list, but I’m going to run through step by step to be sure. I have an OBD2 that I can check the sensor status with so I’ll be waiting to bring it back down until it shows ready, but if it doesn’t reset, what should my next steps be and what should I expect this all to cost?