Series 2 V6 no start.

3800 series 2 engine will not run at all, the security light does not stay on or blink and have tried with 2 different keys in case it was the pass key or VATS. If the car sits a couple minutes it will almost catch and then just turn, try again right away it only turns, sit again for a couple minutes and almost catch again, holding pedal part way does nothing to help.
when I check for fuel or spark there is none at all yet it does almost catch on first try. I let the car sit overnight and the next day it actually started but then stalled a few seconds later like it was running out of fuel. I have dealt with bad VATS or passkey and the light will flash or stay lit and the car will run for a second and die, this particular issue is not acting like that.
i checked the fuel pump relay, ignition relay and fuses under the hood, none are blown or bad.