North America and Europe Highly Affected with the Volkswagen Diesel Scam
Since 2009, Volkswagen had been inserting intricate codes into its vehicle software that tracked steering and pedal movements. When those movements suggested that the car was being tested for nitrogen oxide emissions in a lab, the car automatically turned its pollution controls on. The rest of the driving time, the pollution controls were automatically switched off. Regulators didn't notice this ruse for years. The problem was only unveiled by an independent research group. The international council on clean transportation, which wanted to investigate why there, was such a discrepancy between lab tests and real road performance of several VW's diesel cars in Europe. So, they worked closely with the researchers at West Virginia University, who stuck a probe up the exhaust pipe of VW's clean diesel cars and drove them from San Diego to Seattle.