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The the underlying technique used to fudge the test was that the ECU firmware behaved differently during testing than it would in the real world. I imagine the
by Phlarp 11y ago
The the underlying technique used to fudge the test was that the ECU firmware behaved differently during testing than it would in the real world.
I imagine the performance / efficiency curve can be similarly tweaked in a gasoline engine, allowing the OEMs to both pass the mandated emissions standards testing and still sell the kind of big boy truck consumers demand.
- masklinn 11y agoSure but I don't know that there's as much a need to tweak it to both pass emission tests and have good efficiency.
- mzs 11y agoYep, google Chrysler Lean Burn (which made sense back when they did it, allowed to avoid catalyst for a few more years) and more egregious GM Lean Cruise (which is now not permitted in US models).