aarang Posted July 28, 2003 Share Posted July 28, 2003 I recently finished porting my non EGR intake for a 60mm T/B for my 280ZXT. I am running the stock EFI and can't use the AAC valve with this manifold or the the Vacuum control modulator that controls it. Is it possible to still use the Air regulator without the AAC valve to raise the idle on cold start-up and have it work correctly w/o the water lines plumbed to it? Am I causing more grief for myself than its worth? I'm using this manifold purely for asthetics. Has anyone done this before? Any help is greatly appreciated Quote Link to comment Share on other sites More sharing options...
stagefumer11 Posted July 28, 2003 Share Posted July 28, 2003 ive unnplged mine, and havnt had anyproblems yet Quote Link to comment Share on other sites More sharing options...
SleeperZ Posted July 28, 2003 Share Posted July 28, 2003 Works fine with just an air regulator. No problems whatsoever. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted July 28, 2003 Share Posted July 28, 2003 When I pull the vacuum on my AAC my idle raises, this is at normal operating temp. So if I remove it I will have a high idle? I have 83 engine so there is no adjustment on the throttle body for idle that I see. Am I missing something? Quote Link to comment Share on other sites More sharing options...
Guest jt240z Posted July 28, 2003 Share Posted July 28, 2003 Here's what you're missing. When you disconnect the vacume hose, you're allowing the AAC to bypass the most air into the engine. The greater the vacume, the more is shuts down the bypass valve with will restrict the amount of air entering the engine. This is how the modulator controls the AAC and thus controls the idle. If you remove the AAC valve completely, you have to block off the two exposed ports with a gasket and block off plate. Quote Link to comment Share on other sites More sharing options...
mobythevan Posted July 28, 2003 Share Posted July 28, 2003 Ok, that makes sense. I wondered if that was the case, but I didn't want to remove and block everything before finding out. Thanks Quote Link to comment Share on other sites More sharing options...
aarang Posted July 28, 2003 Author Share Posted July 28, 2003 Should I keep the coolant lines going to the air regulator, or will it work OK without them? Quote Link to comment Share on other sites More sharing options...
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