NO INJECTOR POWER! stuck, pls hlp

[geofthriller]

MY SETUP: '96 SE S14S13 SR20DET BLKTP 1.2 MTL HG COMPRESSION: approx. 165/163/160/160S13 SOHC MAFS14 turbo @ 7 lbsWALBRO 255 w/ NISMO ADJ. FPR

Has 3.7 liters of OIL3/8 tank of GAS50/50 MIX of COOLANT

I drove the car already for 1,000+ MILES with NO sign of a problem, till I installed side skirts, and when I made the Oil+Filter change. My motor does not start, and this is what has already been looked @:

Timing is set to 15 degrees below TDC

Spark at all 4 coilpacks

Light on ecu lights up when KEYED ON

Swapped ECU with a known working ECU= SAME SITUATION

Fuel pressure at approx. 60 psi

Each of the 2 wires on all 4 injector connectors have NO PWR when KEYED ON

Battery + Oil pressure lamp light up on gauge cluster which NEVER lit up in the past.

No blown fuses in both fuse boxes, except for wipers-which i dont have because the wiper plug was chopped off by the previous owner... if at all relevant..

Swapped out BLUE relays (@ the moment dnt knw function of BROWN relays)

Engine harness has no cut or ripped wires!

If you have any idea what the problem could be, PLEASE dont hesitate to help. Been banging my head against the wall for almost 2 weeks now!!

THANK YOU FOR READING!

[dkdeleon68]

Think back to when you changed the oil and filter. did you unplug anything? Do an ECU diagnostic to see if it gives any codes.

[geofthriller]

i removed the oil pressure sensor connector when i put the oil filter on, but i forgot to put it back before i attempted to start it. The car ran for a few seconds then turned off!! now that i connected it back on, i have no power at the injector connectors..

ecu's are goodharness is good

how do i shoot for codes?anything else i could look at??