181–190 of 341 posts
The NYT is being disingenuous in presenting this as VW detecting the EPA test cycle and doing something to cheat. I think they've confused open loop and closed loop engine operation. VW's 4-cylinder engines which failed the EPA tests are all turbo engines. Turbo engines run hotter than naturally aspirated engines and so, they produce more NOx, since it's one of the high temperature byproducts. In fact, EGR (exhaust g…
> The NYT is being disingenuous in presenting this as VW detecting the EPA test cycle and doing something to cheat. I think they've confused open loop and closed loop engine operation. The NYT is not at all confused. The cars in question have software in the ECM specifically meant to detect testing. The software looks at various inputs, including steering wheel position, speed, duration of operation, and barometric p…
This is actively malicious. There had better be criminal charges filed.
Volswagen has over a period of time pumped a lot of this gas into the atmosphere and the fine ought to reflect the actual clean up damage. What is it going to cost to remove it and put the environment back to the way it should have been if they hadn't broken the law. That is what these sorts of fines ought to be based on.
Earlier quoted context omitted.
I'm not sure about CA specifically, but some states only do full inspections on newer vehicles every other year. e.g. In a particular year the odd year models get the full inspection and the even year models just get a quick inspection and then vice versa in the next year.
Georgia doesn't even test diesel cars, others only if over three or four years old.
Earlier quoted context omitted.
I'm not sure about CA specifically, but some states only do full inspections on newer vehicles every other year. e.g. In a particular year the odd year models get the full inspection and the even year models just get a quick inspection and then vice versa in the next year.
Georgia doesn't even test diesel cars, others only if over three or four years old.
Earlier quoted context omitted.
I'm not sure about CA specifically, but some states only do full inspections on newer vehicles every other year. e.g. In a particular year the odd year models get the full inspection and the even year models just get a quick inspection and then vice versa in the next year.
Georgia doesn't even test diesel cars, others only if over three or four years old.
This is actively malicious. There had better be criminal charges filed.
Harm to the consumer via fraud, and to the environment, yes. But corporations almost never see criminal charges. Fuck the environment for 6 years? Pay this fine. Sell some pot? Fuck you asshole go to jail for 3 years.
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California's CARB is the gestapo of car emissions. If anyone has the motivation, expertise, and evil disposition to detect this, it's the state of California. I've never lived in a state like this. Bi-yearly tailpipe sniffs and visual inspections. Even if your car's emissions are cleaner than their ridiculous requirements, they'll still fail your car if it has parts on it that are not stock. I ended up having to sell…
The reason California is so strict is because LA used to be synonymous with lethal levels of smog. Used to be.
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If you output those same emissions at a different time you haven't really done a lot for environment (except if they're cycled through catalyc converter or DPF filter which are usually less effective on cold start) - you're just gaming the system to get better eco ratings.
If you're recirculating exhaust back into the engine, you're able to attempt to reburn any fuel that wasn't burned on the first pass, while also exposing any emissions to higher temperatures on the second pass (higher temperatures = easier to break down when those emissions reach the emissions control system).
That's not what EGRs do.
EGRs take exhaust, which is relatively inert (combustion having already taken place) and injects it into the combustion chamber to lower combustion temperatures. The reason you want low temperatures is that NOx (nitrogen oxides) form at high temperatures.
The tech industry has been guilty of this in the past as well. Example: Nvidia and AMD drivers detected if you were running certain benchmarks or games, and would cheat by downgrading various rendering settings that had minimal effect visually. Often this was a simple check to get the process's executable name; simply renaming the .exe would get you significantly different perf results.