Odd sputtering and rough idle Options

[Malek]

I know the 3SGTEs are notorious for destroying distributor caps and rotors and plugs, etc. but from what I read on here and other forums about this issue doesn't seem to quite match up to my issue.

Symptoms:
-Cold start: idles high normally
-Once warm: idles rough (misfire) and fluctuates 750 - 1000 rpm
-When driving: Major hesitation up to about 3k. Sounds of misfire.
-Above 3k at steady throttle, seems to run fine
-When giving good amount of throttle, doesn't pass 5-7psi and replicates video (below)
-Wideband reads 15ish when above is happening

A comment in the video said they changed their spark plug wires on their GST and it went away..however, this Evo is boosting pass 20psi and I can't get past 7..


Evo 8 Boost


Any suggestions before I jump into dizzy, wires, plugs..? Thanks!

[lagos]

Check for boost leaks or any disconnected hoses, especially your map sensor hose.
After that I would pull the plugs, mostly just to see if any of them haven't worked themselves loose out of the head.
If all that checks out, look at your mechanical timing (that the cams and the crank are EXACTLY at TDC), and check your ignition timing with a timing light and TE and E1 bridged.

Are your plugs, wires, cap and rotor all original, or did you change them with your swap? People talk about ignition issues, but the reality is that you should be able to get at least 3 years out of a new set of wires, cap and rotor, and at least a year out of copper plugs. So unless you are still using old ignition components that came with your clip, I doubt thats your issue.