Got a RR question. I am looking to finally get an 0411 PCM in my 99 Suburban K2500 454, and use my RR and EFILive to tune it.

DOES EFILive support the 5.7L L31 Van code used in the 0411 for this swap?

I have Tunercat, so setting it all up there is no problem, but I want to use RTACS finally for the first time....

Thanks!