singlecamslam

I have power and continuity, i followed the FSM instructions. I have always had this problem, The BOV is atmospheric, but it doenst leak, tried unplugging it, spraying starting fluid directly at it, etc. I have 3 AAC's, i found here in the states the sentra has the same aac so i swapped it out. But like i said, as soon as i apply ground to terminal 1, the AAC works and no more stalling. I did a half assed vaccum leak test with some starting fluid i will do it again, i did clean it as well. Ambient temperature when starting is slightly above freezing, its around 2k, my rpm gauge is 100% accurate as its in a 240sx, Would it be a bad idea to make a separate ground for the AAC so this thing would stop stalling? I'll do another vaccum leak test and go nuts with the starting fluid. Mods are: greddy style intake plenum, 3 in exhaust, thats pretty much it, stock ecu, rb20 wastegate. I think i'll make a video when i have some time, kinda hard to explain exactly whats going on.

This is kinda a long read, so bear with me. The motor at hand, 1997 rb25 s2, in a 240sx, I'm in the USA. The problem is about the common stalling issue while blipping the throttle or coming to a stop, it would always stall. I have narrowed the problem to the IACV, and heres why i think this is so: On dead cold starts, the car starts and idles at 2k like its supposed to, so i figure the air regulator is working properly. When the car hits 50+ degrees C, the idles drops and stumbles instantly like switch has been pressed. THis is when the car starts to stall when i blip the throttle, by the time it reaches 85+ deg. C, it stall much easier and constantly when i throw it into neutral. I checked power going to the IACV plug, has power. I checked continuity between ECU pin 4 (as per FSM instructions) and plug, has continuity. But, when i apply a ground directly to the plug, the IACV works, i can hear air circulating and the car stops stalling. WTF? So for some reason i'm not getting a ground. And when i apply ground i cant change the idle no matter how much i adjust the screw, but it does idle, around 800-900, and most importantly doesnt stall, no matter how much i blip the throttle. Can i just wire in a ground directly to get around this problem? Ideas? What could be going on here. Thanks for any help.