Hooked das up and check engine codes were not related to injectors or cylinders. When I started it up the knocking was back, which then went away again. I noticed it I revved it up a bit the knock would come back then go away again after a few minutes. After it quieted down again I was able to rev it to about 2500 and it was smooth and quiet. Later on the noise came back and a couple of times I got that screeching noise that sounded like the belt. I am wondering if it was the belt or a bearing spinning? At this point the car is at operating temp and the noise is consistent. I went into activations to shut off injectors one at a time and it seemed to me like #4 made no different in its idling condition. A miss seems to accompany the knock, which makes sense. When I shut #4 off it ran the same but still knocked the same. I then went into the values for what I believe to be injector flow rates and it seems to me #4 is way off from the rest. If it was injector knock, i would think shutting off each injector would eliminate the bad one.

I am not really sure how to read this but take a look at the screen shot and see if it tells you anything? Nevermind can't seem to attach it. Here are the results
#1 -1.32 mg/hub
#2 -2.19
#3 2.06
#4 5.08
#5 -2.50
#6 -1.15

I’m still not sure if it’s just an injector or a rod knocking. If it is a rod, can the engine be pulled and the crank pulled and replaced? Or would the engine be toast?