UPDATE #1

alright im getting 12v to all 4 plugs on the white/red wire.

next step i guess would be to test the continuity of the yellow/black wire for injector #2. this multimeter is a lot harder to figure out than the one i used to have so im trying to figure that out then ill start testing continuity from point to point.

only thing im not sure about is how to test the wire from the engine bay to the ecu? i know where the wire is on the ecu plug. is there some way i can jumper the ecu plug? maybe from the yellow/black wire for injector #2 to the yellow wire for injector #1, would that be the correct way to do that or is there a better way?