ECM Fault

This thing is going to ruin my car. Already had to replace battery now check engine light is on. Diagnostics says ECM needs replaced now. I get it I made a stupid decision now I’m paying for it but they should at least have a system that works and doesn’t trash your car. I feel for people who can’t afford to continue to fix their car because of this device. It’s 2026 how has there not been improvements to this huge piece of white plastic garbage.