Wasup
Long time no see. For anyone interested this issue has been resolved - yes its been this long, you know when you keep putting things off? Yeah, this was one of them.
I'll save you all the frustrating details of checking over everything from compression checks, injector inspection to knock sensor checks to know the answer:
- a nipple on the throttlebody (used for charcoal canister) was open causing a big vac leak. New blocked off hose put on and I'm back in business. Until i did a DIY pressure test, I never would have found this in a blacked out engine bay.