i have a 2000 gsr w/ drag gen 3 turbo kit, i'm running walbro 255 pump and rc 440cc injectors, and my car idles like ****. my question is since the vafc2 only goes in increments of 1000. does that mean from 0-900 can't be adjusted or are they the same as whatever i set 1000 at? could i be dumping too much fuel if my car idles below 1000 rpms? would 310cc injectors help my idle at all? my car idles so low sometimes it shuts off.

 

i thought it was your turbo that was bad now u figure out what it is ... it is that vafc because it is not tunned properly.. so what u need to do is take it to a place that can tune cars properly or bring it to someone that knows what they are doing

 

Do not get smaller injectors. Yes, teh 1000 setting on the vafc controls 0-1000. Play around with it, or like the person above said, take it to someone who knows how to tune properly.