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Where does this vacuum port goes to?

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Old 02-22-2016, 11:47 PM
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Default Where does this vacuum port goes to?

Hi,

I want to know where does the vacuum port that i circled in the picture goes to. I just noticed that it is not connected to anywhere, if i cap it the engine stalls.

My engine is H22A5.
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Old 02-22-2016, 11:51 PM
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Default Re: Where does this vacuum port goes to?

Thats prob gonna go to your charcoal canister or something of that sort. nothing really important that would effect anything if you capped it.
Old 02-23-2016, 07:09 AM
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Default Re: Where does this vacuum port goes to?

If it bogs when you cap it, does it recover and run right after? If not, you probably just need to adjust your throttle cable or idle screws to get it right.

I think that one usually went down to the IAB vacuum box under the intake manifold, which is the little black box with a broken nipple on it directly below the arrow in your picture.
Old 02-23-2016, 09:54 PM
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Default Re: Where does this vacuum port goes to?

Thanks guys. I capped it and adjusted the idle screw. Car idles better now
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