Dec 10, 2015 · VW has had a major push to sell diesel cars in the US, backed by a huge marketing campaign trumpeting its cars' low emissions. The EPA's findings cover 482,000 cars in the US only, including the ...
The final part of the entire smog test process is the functional inspection. The functional inspection is conducted by the smog technician and is hands-on. The smog technician will ensure proper operation of the following emissions components and systems. A. Engine Ignition Timing B. Check Engine Light C. Gas Cap & Filler Neck D. Exhaust Recirculation Valve (EGR) E. Fuel EVAP Test (LPFET).