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Here in California I find the emissions testing bizarre. Instead of actually measuring the emissions, they just plug a computer into the OBD port and use whate
by rogerbinns 10y ago
Here in California I find the emissions testing bizarre. Instead of actually measuring the emissions, they just plug a computer into the OBD port and use whatever the car itself reports!
- DiabloD3 10y agoWhich circles back to where VW Dieselgate was a fucking disaster and a lot of people at a lot of levels of government on multiple continents are just as at fault as VW is. First rule of computer security: do not trust humans. First rule of not trusting humans: computers lie when ordered to by computers, and cannot be trusted, and results should be checked as often and as completely as possible.
- woobar 10y agoThis could be more reliable than measuring emissions at the tailpipe. In my state vehicle registration is not renewed until the car computer sends a report to the centralized DMV database. Before that, cheating the emission test was much more easier, because the test was not linked to a particular car.