Maf lean & Rough idle & poor acceleration…
I have a vacuum leak leaking into my intake manifold… somewhere. I believe
Not enough air with fuel mix…
Or too much air with fuel mix.
My car 95’ turbo has EGR & PCT *ALSO HAS PCV & BREATHER BOX…
During stop & go traffic… when I come to a stop, my car feels shuddering, rpms descend below 900k rpms & seems like it is going to die as rpms drop… i have to step on the break & gas to keep it at proper idle or i get lean mix
*if I shift to neutral as I come to a stop the rpms stay more equalized…
My turbo spools great *I accelerate & the car shifts smoothly but once I release fuel pressure and try to accelerate again i get loss of acceleration…
If coming to a stop after a long down hill descent & coming to a stop with no acceleration used … the vacuum pressure feels good…
Once stopped the car feels good *only after descending without use of acceleration…
If I stay stopped the car begins to run lean … - feels like vacuum leak or fuel pressure problems…
When sitting in neutral in an empty parking lot- the idle is great …
My transmission works great. Pulls great up hills. Until recently I have been having to almost floor it to get up hills. The pressure seems to drop soon as i lift my foot off the acceleration pedal…
But seems good when in vacuum & coming to a stop…
I did a smoke test nothing leaking…
Seems to only happen when driving-
Probably not safe but - I’d like to put my front bumper on a tree or wall & accelerate with parking break on & let the system perform & spray soapy water around… - I got nobody to help me tho. & that seems to risky to do alone 
Haha
.
. Am not getting ripped off again…