Remember, VW has admitted to violating federal emissions laws, and as such, it’s neither a state nor a safety issue. There is no recall, and the cars pass all state inspections, at least for now. The following Volkswagen, Audi, and Porsche diesel models have been cited by the EPA for emissions violations. Which cars are affected? Will my car pass state inspection? Some cars may emit just a few times over the limit, depending on driving style and load. That doesn’t mean every TDI is pumping 40 times as much NOx as it should. While this mode likely delivers higher mileage and power, it also permits heavier nitrogen-oxide emissions (NOx)-a smog-forming pollutant linked to lung cancer-up to 40 times higher than the federal limit. But when driving normally, the computer switches to a separate mode-significantly changing the fuel pressure, injection timing, exhaust-gas recirculation, and, in models with AdBlue, the amount of urea fluid sprayed into the exhaust. In the test mode, the cars are fully compliant with all federal emissions levels. According to the EPA and the California Air Resources Board, which were tipped off by researchers in 2014, these so-called “defeat devices” detect steering, throttle, and other inputs used in the test to switch between two distinct operating modes. Volkswagen installed emissions software on more than a half-million diesel cars in the U.S.-and roughly 10.5 million more worldwide-that allows them to sense the unique parameters of an emissions drive cycle set by the Environmental Protection Agency. Here’s our handy guide to what’s happening. After years of promoting “Clean Diesel” as an alternative to hybrid and electric vehicles-the company even marched on Washington with a squadron of Audi TDI models-Volkswagen is stewing in its own toxic vapors. passenger-car diesel market, is in major trouble for cheating on diesel-emissions tests. The company, which owns 70 percent of the U.S. General Motors and Toyota had their massive scandals. We will update with new information as it becomes available. Reuters cited Volkswagen as saying the EA288 engine did not have a "defeat" device to beat emissions testing. This time, they are reportedly interested in the EA288 four-cylinder engine, successor to the EA189 diesel engine around which the Dieselgate investigation has centered. UPDATE 12/4/19: German prosecutors raided Volkswagen's Wolfsburg, Germany, headquarters on December 3, as part of a fresh investigation into diesel VWs.
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