Failed California Smog Test

[AtomicGT]

Exact same thing happened to me. You need to drive about 100+ miles. It was easy for me, 60 miles east of LA is Flo's Chino airport dinner, went and had breakfast and returned. Passed no problem. Just keep it under 65 and at least an hr driving.

 

[Piana]

Yep, the GT guys tune will be trouble in CA and NV. I went back to factory tune and original MAF and still get one system-not-ready (Catalyst) but one is allowed in NV, but not in CA.[/QUO.
Removed tune and drove 75 miles and passed. Retuned and back in business. Thanks Bill. Thanks Clinton for your offer to help.

 

[Chris A.]

still get one system-not-ready (Catalyst) but one is allowed in NV, but not in CA.

Is that correct? I just downloaded this from here: https://www.bar.ca.gov/pdf/Smog_Check_OBD_Reference_Guide.pdf

 

[AJB]

Move to Michigan... no smog tests here.

andy (ajb)