I've been chasing this issue for months now on and off and still haven't figured it out. After hours of research and trial and error this is where I'm at.
First off my setup is a 2000 Civic EX with a built and boosted ls-vtec.
B16 head- supertech valvetrain
Ls block- css, rods, pistons
ID 1000cc injectors
P75 S300 v2 tuned on 93
AFI turbo manifold
Precision 6262

My problem is that when I'm getting ready to do a pull sometimes I have an intermittent power loss to all 4 injectors. I have logged the problem and will post a picture of it below.
The weird thing to me is that the problem can occur one time and then won't happen again for another handful of pulls or vice versa, it'll have the injector power loss a few times in a row while trying a pull but then get one random good pull.

Things I've tried to diagnose the problem/ have made progress toward finding the problem:
I've been through several used oem distributors/ swapped guts out of
Checked main relay
Fuel pump has power when the problem occurs
Has fuel pressure
New fuel filter
Checked plugs and wires before I realized it was a fuel issue
Ecu was checked over and had new capacitors soldered in
Tps is working properly
Map is working properly

My next step is to diagnose wiring at the ecu and at the injectors while trying to replicate the problem

Any help is appreciated. I'd really like to have some fun with my car again. Thanks!

 

 

Bad injector driver. Try another ECU.

 

^^ This

 

Ok I'll be able to try a buddies ecu this week and I'll report back. It'd be great if that's all it is

 

Did not report back

 

OP probably gave up and sold the car on Facebook Marketplace...