Hello I was having trouble coming to a stop and my engine wants to stall so I finally came to replace the throttle body and did a tune up while under the hood with spark plug and ignition coil replacement and oil change. When I finished I come to turn the key and no start. I continue to replace the fuel pump, Mass, map sensors and crank position sensor. With my finally replace was the fuel injectors. After following the repair Manuel. Its turns on for a second and doesn’t stay on. I did a compression test and it passed with 170 psi every cylinder when I was driving lasted there was some loud noise coming from the engine but they went away. I check all the fuses and nothing blown

When I press on the gas pedal to accelerate, I hear a squeak/squeal sound coming from under the truck. When I left off the gas pedal it stops until I press it again. The sound is constant when accelerating or cruising but stops when I press the gas pedal to the floor to accelerate quicker than normal and if I let off the gas pedal entirely and just coast. I'm 100% certain it's not a belt squeal. Anybody got any ideas?

Im haveing issues with my throttle body control system it an obs scan said its tbi a control lotor circuit range performance ive checked all wires running from pcm to throttle body voltage seems good i even put a diffrent used throttle body in and a used gas pedle and cant get out of limp mode ive reset pcm many times checked for blown fuses all seems good i did recently put a new fuse box but i cant see how that would effect this i dont know wat to do next any ideas???