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-   -   1.6 IAC question (https://www.miataturbo.net/engine-performance-56/1-6-iac-question-103738/)

ATeamM 08-31-2020 06:04 PM
1.6 IAC question
 
I did some searching and wasn't able to find much. Today while upgrading the injectors in my 1.6L Miata when I took the part of the IAC off that bolts to the intake manifold I noticed that it has a gasket in there that is blocking the entire passage off to the IM.

Trying to figure out why it would be blocked off and if I should restore it back to how it should be. Car is currently running on a DIY MS3 and idles ok for the most part.

nickalltogether 09-01-2020 08:01 AM
Originally Posted by ATeamM (Post 1580215)
I did some searching and wasn't able to find much. Today while upgrading the injectors in my 1.6L Miata when I took the part of the IAC off that bolts to the intake manifold I noticed that it has a gasket in there that is blocking the entire passage off to the IM.

Trying to figure out why it would be blocked off and if I should restore it back to how it should be. Car is currently running on a DIY MS3 and idles ok for the most part.
It's a fast idle valve that's only used when the car is cold. If it's blocked off then someone thought it might help the car idle, I'm guessing.

https://cimg9.ibsrv.net/gimg/www.mia...bdafd5d439.jpg


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