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Old 08-12-2019, 08:50 PM   #252 (permalink)
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Originally Posted by Bicycle Bob View Post
It is nice to have standard tests to help with comparisons, but I have no faith in the real-world results of pollution checks. Those machines are strictly off-limits for any kind of diagnostic experimentation, for which they would be invaluable. I suspect that VW was just the most blatant cheater, and all the rest are laying low. NOX is a temporary problem, but the savings in CO2 may well have been in the public interest overall.
That is why the EU has started testing emissions while the vehicle is driving on public roads.

Almost every automaker has been caught cheating: Ford, Chrysler, GM, Toyota, Honda, BMW, Mercedes, Hyundai, Renault, Peugeot...

VW was just the most bold about their defeat device. The car actually turned off emission controls if it didn't sense that the car was driving on a dyno. They rest kind of work around the edges in grey areas.
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