Excessive smoke, either black or white will cause a smog check failure. We can only suggest having a second smog station inspect your Ford Crown Victoria. This is not to say that if your vehicle passes at the second station, the first smog station is entitled to refund your smog test fees. The smog station will more than likely state that they in fact witnessed smoke during the smog inspection. If you feel certain your vehicle has absolutely no excessive smoke problem, you may file a complaint with the Bureau of Automotive Repairs.
