SR not starting HELP!

[SpideR]

I have been trying to diagnose a problem for about a week, tried searching threads everywhere and have had no luck so far so.....Car wont start, starter turns, engine turns, got fuel, got spark, just no start. However if I roll it off it will start immediately! And...once it starts it will run fine for about 20-30 minutes, then start cutting out (feels like a spark misfire) and it does it at all RPM's and gets worse as I drive the car. Any help would be greatly appreciated! Here is what I have tried to fix this issue so far....
Replaced Starter
Replaced Spark plugs
Checked Alternator and it is good!
Replaced Battery
Pulled fuel rail to check for O-ring leaks/clogged injectors
Added 4 more body grounds to the car
Checked and replaced the MAF
Checked (with soapy water for vacume/boost leaks)
Replaced Fuel pressure regulator
Checked Fuel pump (it was new when I did the swap)
Swapped ECU
I have heard everything from "check the alternator connections, to Vacume leaks as far as other peoples cars and mine is still fucked!

[wantboost]

have you checked the ecu?

[SpideR]

Yeah thanks I forgot to add that to the 5 thousand things I have already tried. I tried that last wednesday and it changed nothing! : )

[PBarkley]

Just another thing to consider, check all your grounds.

[J Squared]

The fact that its cutting out once it warms up usually means there is an electrical component that is going bad, and the increased heat raises the resistance in it enough to only be an issue after it is hot. I would point to your ignitor or coilpack(s) for this issue.

As far is it not starting but you can push start it, I have no idea. Will it start with starting fluid in the TB?

[SpideR]

No, I tried starter fluid, nothing. I DEFINATELY agree thats it's electrical...Dave and I have been trying to fix this thing but with the event this weekend it was tough (time wise). I am trying to avoid towing it up to Tiger(which is about 50 miles from my house) and it's my DD, which is why I am seeking outside advise, maybe there is something I am overlooking.

[PBarkley]

Well, like I said, it may not be the exact issue, but make sure all your grounds are clean, bare metal.

I had power issues when a few grounds still had paint on the metal surface.

[SpideR]

Yeah I thought that too, but I added even more grounds (just in case) and checked them all with the car idleing and they were all getting 13+volts at idle. Also my battery is still up front if that helps. P.S. Skillzilla is the electrical GOD! lol

[Lonnie D]

I had some similar issues with my car and could not locate the problem and it was frustrating as hell. I know you don't want to tow it to Tiger but that is what I had to do and sammy found a corroded wire in my wiring harness and now everything is good.

Two options to getting car to Tiger
1. If you know someone with a hitch you can get a tow dolley and tow it to Tiger

2. Find someone with AAA that is willing to let you use their miles.

[SpideR]

Yeah my bud has AAA, thats an option.