Truck starts for a few seconds then kills took a spray bottle just to see if it'll stay running an it does...pump primes when first turning itched key on for a few seconds then stops an if you bump the key it turns back on.....I wired the fuel pump in hot to keep it running an ot still does the same thing runs a few seconds then kills tried flipping the maf sensor around thinkin maybe it's on wrong but the arrow of flow is facing toward. IS IT THE VATS AN EGR I took my computer to Jeff at eps in baton rouge im going to call Tom... I don't have a scanner but it's throwing a check engine light so I don't know? Air in the fuel rails? I'm running a ls1 intake an fuel rails with a return but still runs a few sec then kills acts like its starving fue.

 

Code it out before you proceed. That may solve your problem

 

Good lawd first I should get some sleep before I type. just read what I wrote horrible lol you can see we're I dozed off an started back typing like I never did....I'm going to call my tuner an see if he can look if the vats an egr are off but I may as well buy a scanner from autozone are advanced any personal choice are anyone will work? Thanks for responding bruddah

 

I am having the same issue with my swap...did you ever figure out what it was?

By the way best place to buy scanner is Amazon...50-60% off what you pay at the parts store.