Sorry if this is a common question, I tried the search button but kept getting errors. First off I'll start with my setup. I have a 1993 delSol Si with a JDM 1st gen B16a (stole it from my CRX), weapon r intake, DC sports header, and a Mugen ECU. The problem I have is that my car will raise its idle to about 3k when its cold and then just continue to drop to 1k and then raise back to 3. Until it warms up then when I let off the gas it drops all the way down to about 800-1000 rpms before it settles at 2000. I read through the article about the erratic idle, but I feel my problem has to do with my vaccum setup. For the life of me I can't find a good site on how to setup the vaccum lines in my car with a 1st gen B16. Does anyone know of a good site? Thanks.