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i just put a 96 motor in my 1990 miata, i have a flyin Miata turbo kit and im running it with a 90-93 megasquirt. It starts and roughtly idles, but far from complete.

my problem is that when idling, there is a small buzzing sound from theIAV. What does a bad IAV sound like? I modified the megasquirt for TPS,and calibrated it from 112-212. Can anyone comfrim that is correct.these are the steps i took. http://www.miataturbo.net/showthread.php?t=36271

Also, what setting do i need to change going from 1.6 to 1.8 in megasquirt?
 

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I recall people having electrical issues after installing a MS standalone, the sound from the IAC could be from not enough volts going to it, but I'm just speculating :/

This could also be why your idle is rough, unless you simply haven't tuned the engine yet.
 
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