getting a idle air control valve and knock sensor code

[Dlo]

I replaced the idle air control valve but I'm still getting that code plus knock sensor. Is it possible that the knock sensor is helping to give this code.My 96 j30 idles correctly but hesitate when accelerating nd rpm will jump around but will not go pass 2000 rpms

 

[G-895647]

I know ancient post, got same issue, what was fix?