If the timing was off, you would hear the starter click and try to turn the engine, so I don't suspect that is the issue.
Since all power supplies are good and the battery is good, here is what I need you to do. At the starter, there will be a red wire with a white tracer. That wire has no power to it until the key is in the start position.
Have a helper turn the key to the start position while you check that wire for power. If it gets 12v, chances are the starter itself is no good. Also at the starter will be a heavier gauge wire that should have 12v at all times, so be careful not to short anything to it. Also, it may be a good idea to confirm that wire has power as well.
Let me know what you find.
Sunday, March 20th, 2022 AT 6:42 PM