I just installed mine and was using the same frequency settings as my 3-port MAC valve (26hZ), and so far that has given me the best results. But i figured I should ask if what others are using. part number is 46A-AA1-JDBA-1BA. A quick google search and i came across some forums that say the 4port needs lower frequencies to work the same as the 3port. I also notice i'm hearing "wastegate flutter" or pulsing while the solenoid is in operation, and was wondering if that was normal as well.
sounds EXACTLY like this evo under boost driven by this chick:
https://youtu.be/XpDReAw2_Nw?t=38s
Anyone using a MAC 4-port boost solenoid?
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E30_Driv3r
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Re: Anyone using a MAC 4-port boost solenoid?
I'm using one. Mine set at 19.5