EPA and California ARB charge Volkswagen with using software defeat device to circumvent NOx testing in 4-cylinder 2.0L diesels
Green Car Congress
SEPTEMBER 18, 2015
The alleged violations do not present a safety hazard; the cars remain legal to drive and resell. As described in the NOV, software installed in the electronic control module (ECM) on the affected vehicles detects when the car is undergoing official emissions testing. —EPA NOV.
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