![Where the heck does this little port on the intake manifold go? (EJ251) Also, I'm throwing P1507 for IAC underspeed error. Could this be a vacuum leak? Worth swapping the IAC? Thank Where the heck does this little port on the intake manifold go? (EJ251) Also, I'm throwing P1507 for IAC underspeed error. Could this be a vacuum leak? Worth swapping the IAC? Thank](https://i.redd.it/xetw0od69yb91.jpg)
Where the heck does this little port on the intake manifold go? (EJ251) Also, I'm throwing P1507 for IAC underspeed error. Could this be a vacuum leak? Worth swapping the IAC? Thank
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