Rep Power: 0

I have a 95 civic hatch with a built turbo d16y7 running on crome free. I ran it for a few weeks on the stock fuel setup using a map I had made when I was running a turbo on the stock d15b7 my car came with. Ran and drove perfectly in and out of boost on stock injectors. I swapped in Fuel Injector Clinic 1000cc injectors, and figured I would get the tune sorted at least for idle before I installed my walbro 255lph, and hondata 4 bar map sensor. I wanted to introduce as few variables as possible to make things easier on myself. So I scaled my entire fuel table to work with my injectors, final multiplier is 0.255, cranking multiplier is 0.240, and post start is 0.240 as well. I also used the injector voltage offsets that FIC sent with the injectors. Car starts and sputters horribly, AEM wideband pegs to 10.0 and in actuality the afr is probably much lower than that, even with light throttle applied it would die in a few seconds. Engine was completely flooded, all four spark plugs dripping in fuel. So I let it air out, clean up the plugs, and take over 75% of the fuel out of the post start compensation table and try again. Car starts and revs freely at about 15.0 afr for around 5 seconds and then begins to climb to full rich and floods the engine again. I have tried everything I can think of in crome, I pulled all of the IAT and ECT compensations out, and even tried leaning out the entire fuel map a significant amount. No changes. Start, run at 15.0 for a few seconds, and then pig rich and sputtering. It may be worth noting I am using a d15b7 intake and throttle body. I am not running an IACV, it is unplugged and blocked off. The car idles from the throttle body always being slightly open by the little stop adjuster screw. This is exactly how it ran on stock injectors. Never had a problem with afr or idle.It seems to just be dumping fuel no matter what changes are made to the tune. Any thoughts on what is going on here?

 
Rep Power: 229

1000cc is probably too large for that engine.

10-15psi most people run 500cc with a walbro

There are two elements to lower the fuel output from the injectors.

-lower injector load from 100% to what works (but if you get down to 25% voltage, they may not fire at all.

-lower the injector period, the reduced time will reduce the amount of fuel in the mix.

if neither work, you'll have to buy smaller injectors. Unless you want to add more air... which means a smaller turbo that spools at idle, or twin inline turbos, one small, one big.