I didn’t know that each county do it differently. Does that mean I can just go to Santa Cruz to do a smog test, and they won’t do a dyno?
Good point on O2 sensor even if it doesn’t throw code. I’ll check how old they are.
Oh and I forgot to ask if there is any side effect from the habit of overfilling by half quarts (to avoid oil starvation on s52 engine). I’m wondering if this might have any impact on HC?