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intake and throttle body questions.

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Old 03-12-2013, 01:23 PM
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Default intake and throttle body questions.

So after some looking around i found a few things on the intake manifold and throttle body that had been sealed up. Not sure if they are things that weren't needed after the swap but i figured you guys would know. Here are some pics.





Old 03-12-2013, 09:27 PM
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Default Re: intake and throttle body questions.

the one in the first pic usually goes to your fuel pressure regulator, and the others go to a black box under the manifold for emission purposes, which seems to be eliminated. Go to part source, auto zone, or whatever you have, and get vacuum line caps. They're usally $1 for 8 of them
Old 03-13-2013, 07:43 AM
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Default Re: intake and throttle body questions.

DO i absolutely need to have the first one connected to the fuel pressure regulator?
Old 03-13-2013, 07:57 AM
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Default Re: intake and throttle body questions.

Why would you NOT?
Old 03-13-2013, 08:16 AM
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Default Re: intake and throttle body questions.

Because the car is running fine without it connected
Old 03-13-2013, 08:21 AM
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Default Re: intake and throttle body questions.

is your pressure regulator connected to a vacuum source?
Old 03-13-2013, 08:47 AM
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Default Re: intake and throttle body questions.

Originally Posted by mitchh29
DO i absolutely need to have the first one connected to the fuel pressure regulator?
yes.
Old 03-13-2013, 08:48 AM
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Default Re: intake and throttle body questions.

Originally Posted by kyden
is your pressure regulator connected to a vacuum source?
No clue
Old 03-13-2013, 09:22 AM
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Default Re: intake and throttle body questions.

Don't get the rubber caps, they'll crack and leak. Get the harder plastic looking ones.
Old 03-13-2013, 10:45 AM
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Default Re: intake and throttle body questions.

Can someone point me in the direction of the fuel pressure regulator? Google isnt helping much
Old 03-13-2013, 11:17 AM
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Default Re: intake and throttle body questions.

If stock fuel rail, its on the timing belt end of fuel rail. Should have a vacuum line coming off of it to manifold vacuum source.
Old 03-13-2013, 11:20 AM
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Default Re: intake and throttle body questions.

So basically the little silver contraption attached to the fuel rail almost right in front of the closed off hose in first pic?
Old 03-13-2013, 11:24 AM
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Default Re: intake and throttle body questions.

Yep, is round and bolted to fuel rail w/two 10mm bolts
Old 03-13-2013, 11:29 AM
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Default Re: intake and throttle body questions.

Wow i have no clue why the previous owner decided to cap it off instead of just reconnect it. Its only like 5 inches away haha
Old 03-13-2013, 11:39 AM
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Default Re: intake and throttle body questions.

P/o sounds like a dummy. Unless it was leaking fuel, that's only reason I can think of. If it has fuel in the line the press reg is bad. Id look over the other work p/o did after that's fixed. I'm sure they f'd up other stuff too.
Old 03-13-2013, 11:53 AM
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Default Re: intake and throttle body questions.

The only other thing i can find that they totally goofed on was putting the vtec on a toggle switch
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