[4x4k30]

I need some help with my 79 with a 6.0 lq4 its throwing these codes po507 idle to high.. po0332 knock sensor right side and po101.maf . I checked the wiring for the maf sensor and it checked out and I even unhooked it .the problem stays the same I can push down the throttle pedal to the floor and it doesn't raise the rpms at all but it does speed up using half throttle but nothing pass full throttle.