On an EFI throttle body, where does this route to?

Energy One
Chuck3d

Chuck3d

Member
I found that I'm missing an air line to this nipple on my EFI throttle body. I was trying to figure out where it routes to, but I cant find a air line/vacuum line diagram in any of the manuals. Anyone have an idea? Or can I just cap it off and not worry about it? It leads to just in front of the butterfly on the top of the body, right behind the IAC opening.Throttle Body.jpg
 
Chuck3d

Chuck3d

Member
Jersey Big Mike said:
Hmm, I'll look at mine later and see what if anything is there.

Looks like you need a new gasket there brother.
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If you get a chance, that'd be great. Thanks. Yeah, I think I have a vacuum leak somewhere else down the throttle body. I get a DTC error for front adaptive and rear adaptive maxed. Bob at S&S gave me some Protune trouble shooting ideas, but resetting maps in Protune didn't work. So he speculates that there's a leak. I just happened to notice this in the process.
 
Jwooky

Jwooky

Well-Known Member
It’s capped.

Id start by cleaning the system out including the injectors. Tank liner, deteriorating hoses all clog the system and impede fuel and will max them out.

Pull the screen from injectors with a course screw, and clean or replace them.
Use a 9V battery to open the injectors and spray carb cleaner through them
 
Chuck3d

Chuck3d

Member
Awesome. That's what I was hoping... I've done the injectors, but I'm sure I need to do the fuel sock and replace the fuel line that runs between both sides, underneath the tank. Thanks for the information!
 
Jwooky

Jwooky

Well-Known Member
Chuck3d said:
Awesome. That's what I was hoping... I've done the injectors, but I'm sure I need to do the fuel sock and replace the fuel line that runs between both sides, underneath the tank. Thanks for the information!
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Yes the in tank filter for sure.

The pump is only ~$60 might be worth replacing while your in there.
 
Chuck3d

Chuck3d

Member
Jwooky said:
Yes the in tank filter for sure.

The pump is only ~$60 might be worth replacing while your in there.
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I've only been able to find the replacement pump for $189. And I haven't found the sock filter besides in a complete rebuild kit. Can you point me to the fuel pump? If you have a place for the filter, I'll take that too.
 
Chuck3d

Chuck3d

Member
Chuck3d said:
I've only been able to find the replacement pump for $189. And I haven't found the sock filter besides in a complete rebuild kit. Can you point me to the fuel pump? If you have a place for the filter, I'll take that too.
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I found the pump on Summit Racing. Just looking for the filter.
 
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