My MacBook Pro 15” mid 2009 is acting up

The first time I turned on my MacBook, it perfectly turned on without a battery, installed macOS Monterey using open core Legacy patcher, the very next day it just would not power on because it would be stuck chiming mid way and then shutting down. A couple days later, I went back to it and it surprisingly turned on, but all the blacks were red on the display! Now it is now chiming midway, and shutting off again! Does anyone know how to fix this (if it helps, it turns on fully without the display connecter in)