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#26
Posted to alt.home.repair,rec.autos.tech,sci.electronics.repair
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EPA caught VW cheating - how does the car know it's being tested?
On 05/10/15 13:33, sms wrote:
On 10/4/2015 2:39 PM, Klaatu wrote: According to NBC, the emission controls were altered when only the front wheels were turning, as on a dynometer. I don't know about diesels, but newer gasoline powered cars in California don't use the dyno anymore. The levels are all read from the sensors via the OBD-II port, at least in California. It's trivial to detect that the car is not being driven. No steering wheel motion, no compass variation, no accelerometer (if fitted), no... you name it, I'm sure there's a long list of candidates. |
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