According to records filed in the case, Achtemeier conspired with mechanics in garages and operators of truck fleets to disable the anti-pollution software installed on diesel trucks.

Coconspirators who wanted to disable their trucks’ pollution control hardware system—a process commonly known as “deleting”—sought Achtemeier’s help to trick the truck’s software into believing the emissions control systems were still functional, a process known as “tuning.”

Monitoring software on a deleted truck will detect that the pollution control hardware is not functioning and will prevent the truck from running. Achtemeier disabled the monitoring software on his client’s trucks by connecting to laptops he had provided to various coconspirators. Some of the coconspirators would pass the laptop on to others seeking to have the anti-pollution software disabled on their trucks. Once the laptop was hooked up to the truck’s onboard computer, Achtemeier could access it from his computer and tune the software designed to slow the truck if the pollution control device was missing or malfunctioning. Achtemeier could “tune” trucks remotely, which enabled him to maximize his environmental impact and personal profit.

  • Diesel engines can be tuned to be 10% more efficient ie better engine performance and better fuel economy if u modify the engine tuning to ignore the environmental tuning requirements that have been forced upon the manufacturers.

    as much as this guy sounds like an asshole should ownership not mean u can modify your own property as u see fit?

    • TheFogan@programming.dev
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      12 days ago

      as much as this guy sounds like an asshole should ownership not mean u can modify your own property as u see fit?

      That’s kind of what emission standards are, is rules of that. You can modify your legally purchased firearm as you see fit, but if your modifications make it shoot in random directions, you can’t use it in a shooting range.

    • catloaf@lemm.ee
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      13 days ago

      Sure, as long as you pipe the exhaust directly into your lungs, and not anyone else’s nor the environment.

    • frezik@midwest.social
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      12 days ago

      as much as this guy sounds like an asshole should ownership not mean u can modify your own property as u see fit?

      Not when your actions affect others, no.