On Thursday, September 24, 2015 at 12:09:20 PM UTC-7, sms wrote:
I got my DMV registration renewal in the mail and was going to take the
vehicle to a smog check station. I always scan the codes via the OBD-II
port first. One oxygen sensor was throwing a code, and there was one
other code.

I thought I was in for a costly repair, then the VW scandal made me look
at the warranty booklet. Emissions equipment is guaranteed for 15 years
or 150K miles. Anything needed to pass a smog check is included. This is
for California, YMMV.

Even though you fix the problem and erase the code, the smog station's computer hook-up may detect it and fail ya. There's a specific method of driving that will re-learn you car's ECM. Don't listen when the guy tells ya to just go drive it 200 miles and come back. I have a print-out somewhere of the procedure