Need Help tuning 2009 6.2 L92 6l80e

[azalex]

1985 c10
2009 escalade 6.2L 6l80e ;flex fuel, vvt, psi wiring harness, drive by wire

pulled the motor out of neighbors caddy, said it would go off every time they hit a bump after they got a sound system installed.
weeks later i have it in my c10, everything is installed except the serpentine belt , i have a gmr4 ac compressor that i need to get a condenser and other parts hooked up and filled with refrigerant.
when i first started it, it would crank and run for about 1 or 2 seconds and shut off ;when on the scanner it would read it right up until i start it, then readings will freeze up and stop reading everything pretty much instantly after i crank it.


Here are some things that i have done to it so far
-standalone wiring harness from psiconversions.com
-rear o2 sensor delete
-no body control module
-Egr delete
-evap delete
-long tube headers only[just for now until i get mufflers etc]
-102mm throttle body
-fabricated intake

I plan on having A/C, Heater, flex fuel, mufflers with no cats, cold air intake, 4/6 drop kit, and electric cutouts after the long tube headers.

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2009[L92[6l80e[pt2.hpt

Hardware: E38 ECM, GM Gen 4 V8
OS # for ecu 12630501

Hardware: t43 TCM , GM A6
OS # for tcm 24249179

Vin:1GYFC132X9R237957

[kevin87turbot]

Here are a few things to check.
Did you verify that the coil grounds are connected directly to the heads and share no other connections?
What spark plugs are you running? Are they an OE type resistor style plug?
Is fuel pressure verified?
Did you do a Write Entire when deleting VATS? (You should also disable the starter fault check.)
Will it fire up in SD mode? (just try disconnecting the MAF temporarily.)