knock knock knock Options

[ncgalant]

Hey guys, I've been playing the the laser just trying to get a better understanding of what the ecu is doing at what point and why. Problem is she knocks and I can't get it to go away. Here's what's going on:

-Into the throttle anywhere from 1500-2700rpms results in 43counts of knock
-The O2 cycles as it should and my fuel trims are all 3 90-110
-Changing gears to raise the RPMs will make the problem go away
-A hard rev will make the problem go away for a minute or two
-At WOT I never see a knock count higher than 2

So what are your thoughts? I'm leaning toward fantom knock.

[AWD DSM 1]

A thought...

If the engine was out of balance slightly, would it knock at lower rpm, but go away at higher? Maybe even slightly low compression in one cylinder. I've had my truck do somthing like that when the plug wires went bad. Shakes at low rpm, but smoothed out at higher.