Ford and Chevy have had three decades to work at making a system that has the redundancy, tolerances, and repairability to meet with the Clean Air Act requireme

Ford and Chevy have had three decades to work at making a system that has the redundancy, tolerances, and repairability to meet with the Clean Air Act requirements. The ease of repairability isn't something that is legislated - but rather the "this is the minimum fuel efficiency and the emissions for a diesel vehicle". The placement of sensors and lack of redundancy is a choice from the company. The existence of an electric vehicle has no bearing on using a pickup truck to do long haul loads. That the company is making it difficult for 3rd parties to repair is exactly the issue of right to repair and intentionally making it hard for 3rd parties to fix even though they are in compliance with the requirements (by the Clean Air Act) to provide this information and parts. (I will also point out that this sort of intentional tampering and violation of laws is what makes it harder to argue for a right to repair for other things.) One's ire shouldn't be directed at the EPA but rather Ford and Chevy for making their trucks harder to fix and lacking redundancy in the systems to avoid the situation where it breaks and you're limited to 35mph. Furthermore, as a working truck, it is probably necessary to have it tuned up more frequently than its passenger vehicle time schedule would suggest.