Hi,
Wow, that is a mess. The part that is badly melted is the Evaporative System Integrity Monitor (ESIM). The ESIM mounts directly to the canister. It allows air to vent during refueling. During refueling, pressure is built up in the evaporative system. When the pressure reaches approximately 5 inches of water, the large check valve unseats and pressure vents to the fresh air filter.
This isn't causing the electrical issues, but it does add some insight into the vehicle's prior use. The exhaust being modified does as well.
Check closely for melted or damaged wiring. I have a feeling that is what is going to be causing the issues.
Joe
Sunday, September 24th, 2023 AT 2:05 PM