On 9/18/2015 8:19 PM, Ewald Böhm wrote:
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.

REFERENCES:
http://blog.ucsusa.org/volkswagen-ca...cle-recall-887
http://www.engineering.com/AdvancedM...EPA-Tests.aspx
http://hothardware.com/news/vw-inten...-482k-vehicles
etc.

My question is HOW did the car *know* it was being *tested* for emissions?


I found that interesting for two things. I assume the car's computer
knows an instrument is plugged in so it changes the program.

I also find it interesting that a large allegedly reputable company
would do something intentional to cheat like that. Too easy to get
caught or ratted out.