rb 25 misfire issue

[lbs4]

ive adjusted the tps i havea q45 tb and greddy intake,frontmount and bov. ive replaced the plugs sometimes it helps sometimes it doesnt. i found 2 little crack in the coils i taped them sealed them everything i tried. it is fouling all of the plugs, misfire on idle and as you drive. i want to buy new coils, but i did change the plugs within 5 minutes they were super black. im not having any luck hopefully one of you know what to do or try,

[lbs4]

also how can i tell what my ecu is, meaning series 1 or 2, my motor is series 1

[lbs4]

the issure im having is all of my plugs keep fouling, anyone have an idea why all of them would do that?

[corn322]

Maybe it's running real rich.

[kouki munster]

You are apparently running very rich and since all the plugs are black after 5 min of use, the issue is most likely going to be something that is common to all cylinders.

List of things to check in the order that I would check them(find a fsm to figure out how to check)
Fuel pressure regulator
Maf
O2 sensor(not likley to make it run as rich as you seem to be, but still not a bad idea to check it out)
ecu

[lbs4]

I replaced 02 nothing changed. Changed coolant temp sensor nothing. I unplugged the Maf it ran real s***. So I don't think that is bad I checked coils 2 had very very minor cracks I taped then and expoxyed them still the same. I know 2 are probably not the best but it shouldn't affect the other cylinders and aslo when it's running unplugging one at a time they all effect the engine the same. I have not checked fuel pressure, my gauge won't hook up I'm borrowing one tommorow. Would an igniter do this? I have a z32

[lbs4]

Also forgot to ad I have a series 1 motor. How can you verify ecu to engine I bought this car not running cOmpletly stripped and there was 4 ecu's inside including a rb 25 nistune

[lbs4]

i would like to see how to figure out what ecu i need being a series 1 engine. also i did check the 02 i replaced it for about 10 min but still nothing, i have misfire at idle and also few times through the rpm.i ordered new coils.

[Hoffman5982]

Could be wiring. Before I got my WS harness my car was going through $30 of gas every 20 miles. After I got the harness that stopped