It's getting REALLY annoying.
I have no idea that is causing it.
No ECU codes.
Replaced KS.
Replaced Plugs w/ NGK's.
Replaced stock filter with K&N cone and v stack.
Cleaned TB.

What gives???????
Fuel Filter???
Coil Packs???

 

I have the same problem. Could be the coil packs or the fuel injectors clogged/leaking My car runs better with the Chevron fuel system cleaner so I'm guessing my problem is the fuel injectors. I'm going to use SeaFoam today or tomorrow and I'll see if that helps a little

 

I didn't think Fuel injectors would be a problem since the car is okay at WOT. It's just at partial throttle when it boggs.

Anybody else know what's up?

 

Mine kept doing this for a while.
Are you running 91+ octane gas in it?
I started doing this, and all my hesitation at midrange has gone away.
Also, I replaced my fuel filter....what a task! It was very difficult. I just couldn't get my hands in there. Those Japs! I would recommend just taking the intake off to do this....it gives you a whole lot more room to work with.

Other than that, I would just say coil pack. That might be the thing.