Partial Throttle Knock Cured (I think)

[eppler]

After chasing the partial throttle knock problem I've been having, I think I've cured it. Just normal driving on the highway (5th gear below 75-80mph) could peg the knock count at 43.

I've tried several things to try and fix it, including:

Swapping a known good ECU
Swapping in known good Injectors
Replaced my exhaust manifold (it was cracked and leaking)
A full timing belt job
Swapping knock sensors.
MCCC

Here is what fixed it - I noticed several places for the knock sensor to go in the block. I felt 3 holes, and the place the knock sensor was at was in the one closest to the starter (furthest from the belt side). I moved it from that, to the hole closest to the belts. I'm still picking up very slight knock if I really lug the engine (around 10-11 counts max, not bad), so I'm pretty sure that cured it.

Now, my question is - what are these holes for? And which one is the correct one? Does anybody have a picture of that part of the block (I'm working blind, by touch). I could circle which hole it is in.

Sorry for the book, and thanks for the space!

Steve
1992 Eagle Talon TSi AWD - stock

 

[JessesTalon]

It was probably in the right hole you moved it so it can't hear as much which would be why it shows less knock? I don't know that for 100% but it would make sense to me.

 

[eppler]

Well, I *think* I pulled the knock sensor out of my old car (which didn't have PK) out of the far hole. That's what got me thinking and made me move it. I remember it being pretty easy to remove from the '91, but getting the '92 was difficult, and I had to remove the starter to get access. Then I just started feeling under the intake and felt 3 different holes, and moved my sensor to the furthest one (it is supposed to be behind the #2 cylinder, right?) It was much easier to install in this position, which makes me think the '91 was installed like this originally, and the '92 was installed wrong to begin with, making it pick up excessive knock (noise), and why it was a pain to remove in the first place.

Thoughts?