Fuel problem I think? Going Crazy

[06_GT_Hawaii]

I had an almost exact same situation after doing some work on my truck engine. Does it idle fine? Stalls out when you get on the gas?

With everything you've already checked, try going back to the basic things you wouldn't think about checking. My truck was doing this, and after replacing all the upper gaskets, fuel injector o-rings, new plenum pan gasket for the intake, and 3 days of frustration... a mechanic friend came over took 5 minutes of looking at it, took off all my spark plug wires, wired it right... and that was it.

After all that, I had two wires messed up just enough that it would idle with a nice little rumble to it, then stall out a short way down the road.

Just saying that with everything else you've already checked, it might be something stupid that you wouldn't think about.