Cannot keep this motor idling for very long and just slowly creeps into a nasty surge. Have adjusted timing up and down, played with fueling and airflow,Adjusted for the bigger throttle body, and just cannot get it to idle for more than a few minutes. Will idle smooth and then slowly start getting into a nasty surge resulting in a stall. Ive done the idle config, and made all the the adjustments that i can think of. Ive not done too many of the DBW setups and this one has allot of aftermarket parts. Please look at scan and tune and tell me what is causing it.
06 6.0l
Returnless fuel system
NW102 DBW TB
Prc heads
240 Duration .610 Lift cam
Fast 102 LSxR Truck intake
SD Mafless tune no 02s
Full Hooker exhaust system
Have everything Turned off for Idle config scan purposes except for the idle under/over tables. Idled allot better with them set back on, but still isnt right even with them in the mix. Ive been messing with this tune for a few days now and could use a hand.