"Ewald Böhm" wrote in message
Apparently Volkswagen/Audi cheated on the USA emissions tests since
2009 to 2015 by turning off the EGR to lower nitrogen oxide emissions
ONLY when the car was being tested for emissions.
My question is HOW did the car *know* it was being *tested* for emissions?
According to NBC, the emission controls were altered when only the front
wheels were turning, as on a dynometer.
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