On Thu, Oct 01, 2015 at 06:13:08PM +0000, jim bell wrote: > There probably isn't any specific "defeat device". These days, probably all > fuel engines are controlled by complex computer programs, that take various > inputs (ambient temperature, ambient air pressure, engine temperature, and > perhaps others) and make complicated adjustments in inputs to the engine, in > order to make the engine run better in various ways. In other words, the > "defeat device" is in the software, not the hardware. Jim bell
I read it is known that the software detected via sensors that the car is in a lab (almost sure on a stand) and switched to "clean mode" (check wikipedia and their sources). According to local news Mercedes also cheated, but polluted less.
