I recently bought a black 2001 is300 and have started to fix some of the issues that it has. This car has gone through a lot of peoples hands before me and definitely has its issues. The biggest one I'm currently facing is the car is running 38% lean on long FT bank 1 and 2 and they consistently...
TL : DR
Car wouldn't start. Switched EFI/HORN relays and car would start, but horn still worked.
Car died a few days later and would not restart.
Shop determined it needed a fuel pump/filter/pressure regulator/ and relay. We replaced all. ($1266 after tax... oof!)
With new pump the car...