koukipilot

Ok, here are the basics, I'm trying to get my friends S14 w/ S13sr20det to idle well enough so we can get it tuned on the dyno. He is using Apex power FC D-jetro for fuel management so no maf, and Apex elec. boost controller. I looked for vacuum leaks and couldn't find any but the idle surges like crazy within a minute after startup, 600rpm to 1000rpm, then eventually dies. We reset the CAS at least a dozen times to 15 deg. already, checked all the injectors to see if they're all firing, and they all are ( at 48% duty cycle ). Anyone have this problem? Any suggestions would be greatly appreciated and thank you very much for your expertise.