Need help

[H.D.HUMPERDINK]

I recently rebuilt my motor, and installed it back into the car. Since then I haven't been able to get it idle correctly at all. At first I thought I was just a vaccum leak, so I check every vaccum line and all of my intercooler couplers. I found a leak where one of my injectors meet the intake manifold. Which once fixed, did not fix my problem. From there I tried to retune the ecu since my afr drifts between 18.9 and 17.6. But no matter what I try it either goes way to rich once the car warms up, or starts and idles for a few seconds and then leans out. After messing with the computer for awhile and geting nowhere, I replaced both the acc and iacv in hopes that would solve the problem. But it didn't.

I bought a fuel pressure tester and at idle I am only getting about 40psi of fuel pressure. Which is low, but I don't think its low enough to cause the afr to be in the 18s.

My setup is a calum ecussac manifold with a garrett to4esubaru sti injectors in a stock fuel rail.

[spooled240]

well I dont' know about the numbers but I would raise the fuel pressure to the stock level of 60 psi IIRC. It makes sense that the engine will lean out if the fuel pressure is too low.

[H.D.HUMPERDINK]

The stock fuel pressure is 43.4psi according to the fsm, but the main problem is once its running. If I do anything other than ease into the throttle the fuel cuts and the car tries to die.

[WDRacing]

Hard to diagnose a tuning problem man...

[spooled240]

check your fuel filter