Need car mechanic. Just picked up my '05 Mazda 6s from dealer in Antioch after dropping it off 3 days ago. Told them mass air flow sensor replaced 2 months ago, will not pass emissions and had trouble with transmission, no check engine light on. They fixed couple things with transmission, changed the fluid, new brakes. Got all the way to hwy386 and guess what, check engine light on!! So 3 days in the shop $1000 and not completely fixed.