AVOID AVOID AVOID! They are not an honest business, read the other reviews this is not the only instance.
I have ALWAYS gone to north bay smog down the street, but for some reason today I decided to go to this location. They went through the entire test before informing me I was missing a 2 inch section of vacuum line on a sensor below my intake. The sensor was not throwing errors before this, and I ran a full 2 way emissions system diagnostic the day before while repairing my vehicle and no sensors were receiving atmospheric pressure that should have been receiving vacuum...ie no lines were missing at that point. I guess the line must have spontaneously fall off in the previous 10 miles of driving?
I asked them if I could have or buy 2 in of vacuum line from the bundle on the wall of the shop and plug the line in myself, and was told that not only would they not supply me with vacuum line as a courtesy, I would have to PAY THEM to install it. It is literally 2 inches of line, costing 10 cents from any auto parts store, and can be installed in less time than it took them to try and fleece me. To put icing on the cake, it would be an additional $50 for them to retest the car after the $100 I had already paid.
I went home, cut two inches of vacuum line, plugged it in and had the car fixed in less than 2 minutes. Then I went down to Northbay smog (where I should have done to begin with) and got a test for $70. The owner informed me that miller smog marked that I had "tampered" with my emissions system on the CARB database, instead of saying the line was "missing". This caused a flag on my vehicle.
The owner of north bay smog was also aghast at the way I was treated at miller smog, he says he sees missing vacuum lines on older cars daily and simply informs customers and repairs them FOR FREE before initiating the smog test so that it does not have to be done twice. This is how business should be done.
AVOID this business, go to north bay smog. They are a much better establishment. read more