O2 Sensor Readiness

[Sphoria]

Does anyone have a suggested method for forcing readiness on the Oxygen Sensor? I flashed back to stock to pass smog here in CA and all of my other emissions sensors are showing ready, but after two plus full tanks of gas, well over 300 miles of daily driving and lots of cold starts my Oxygen Sensor won’t show readiness. I’m running out of time to get smogged and registered at this point and looking for hacks to force the O2 sensor to do it’s thing. TIA!

[Fresh.S4]

Drive around casually. Different speeds.

Could take 20min up to an hour.

[Sphoria]

Problem is I’ve been driving around casually for weeks and it’s still not registering.

[B7TitaniumA4]

My cats are removed and I have my down stream sensors on spacers, CEL stays off but after over a year of driving I still don’t hit readiness. I just drive without my annual inspections lol (Pennsylvania) probably a slap on the wrist if I actually ever get caught.


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[Sphoria]

I grew up in PA. I don’t miss the weather, but I do miss the lack of government oversight.