I have a 2004 g_m_c yukon x_l k 1500 and was driving yesterday and all of a sudden I lost 4 injectors and 4 coil packs there's not any power going to bank 1 coil packs or bank 1 injectors so it's running off of cylinders 2468 where should i start to look

What is your question?

it's throwing a misfire cylinder 1 code A knock sensor bank 1 code and and injector circuit code and is also throwing a shift solenoid B code I have no idea where to start the diagnosis never heard of it losing all fuel injectors and all coil packs in a single bank at the same time