So I just bought a '90 240 with an RB25DET in it, and it's got a few issues. Apparently, the SFAC it had in it before was stolen out of it, so it runs incredibly rich and dies with more than 10% throttle, I'm guessing it's in limp mode. So, I got an SFAC coming, that's done with, but it's got a Z32 MAF in it, and the ECU I'm unfamiliar with. I've tried googling to no avail, but it's a R620 A3 5809.. I haven't seen it mentioned ANYWHERE on google, and all I get is japanese results. Anyone know what ECU/what car this came off of? Thanks.