1G Misfire under boost

[Bluefire16]

Hey guys, posting in the newbie forum because i have been out of the DSM game for several years now and kind of stumped. Little bout the car, 92 awd laser, 2g maf, walbro 255, small fmic, 560s, aeromotive afpr, 14b.

Problem; it has a misfire under boost at about 10lbs.
New plugs gapped,
new wires,
newer coil pack,
and have checked couplers. (Getting my compressor this week for a BLT).

However, i suspect its electrical more than air leak. You can feel/hear the break up as it accelerates, without boost. Vac is at 15, and A/F is sitting at 14.5-15 at idle. Tried watching the A/F as it boosted and nothing jumped at me from being a fuel issue.

Previous owner said that he checked the coil pack and the voltage was off, and he replaced it with another and still bad, so im guessing the coil or PTU?

Thanks guys any help is appreciated. Looking for other possible suggestions.

 

[clipto]

Well just trying to help. Your where the one that was posting for help so I replied. Just cuss this is not your first dsm doesnt mean u atomaticly know everything about cars/let alone dsms, hence why you are posting here instead of fixing it. This is an easy fix i just hope u find it on your own now sence u are pro. Good luck get it running..