2011 BMW e92 335is Smog O2 Sensor not getting ready

[BMWMperformance]

Hi, I have 2011 BMW e92 335is I can’t get the o2 sensor ready to pass smog. We drove the car almost 1000 Miles and no luck, we run the drive cycle for about 10 to 15 times doing 20-35 MPH and 40-55 MPH everything gets ready except O2 sensor. We just recently flashed the ECU/DME and run the drive cycle still everything gets ready except O2 sensor. We tested the o2 sensor signal voltage we get the normal 02 sensor voltage in the scanner and we do not get any Pending or Present P codes. Does anyone have this type of issue before? Any help from professionals? Thank you,

[Roundrockcrawle]

Buy a new one and replace they are cheap,!!!

[BMWMperformance]

Buy a new one and replace they are cheap,!!!

Buy what?

[Roundrockcrawle]

O2 sensor that's what you said was coding right...

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I just had to do state inspection here in Texas had to drive my 335 I almost 150 miles after turning off the JB4 keep reading" not ready " finally got it to pass.. Good luck

[BMWMperformance]

O2 sensor that's what you said was coding right...

- - - Updated - - -

I just had to do state inspection here in Texas had to drive my 335 I almost 150 miles after turning off the JB4 keep reading" not ready " finally got it to pass.. Good luck


Thanks for the update, But we don't have no codes whatsoever no fault nothing in the system. The car is at dealership and they couldn't get the O2 ready either after driving for 200 miles. You think it could be bad emission OBD system or bad catalytic converter?