Ok hopefully somebody can help me. H22a swap in eg, car starts and idles and fuel pressure gauge shows proper fuel pressure. But the second i hit the gas even slightly, it instantly cuts out like as if it instantly gets nomore fuel and dies out. But if i pinch the fuel return line to raise fuel pressure, it wont act up at all when i hit the gas. I checked and tested all wiring and sensors (tps, map, iacv, iat, etc etc etc.) And all checked out good. New Aem fuel rail, aem pressure regulator, new fuel hose from rail to filter and new fuel filter. Any help or ideas will be greatly appreciated!

 

Bump

 

Take pictures of the fuel feed line, fuel rail and regulator and fuel return line connection... and post them here so that we can see what you have. Oh, and don't "bump" your own post, it's just rude. The community will be LESS likely to help when you don't behave.