Is something missing?

[JMiller]

I thought there were 4 vaccum lines on the top of the throttle body but i only have 2. Its a 98 GST.

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[viperlp01]

Nope the throttle bodies change throughout the years . I have 4, i have seen 3 and 2...

 

[RD_Blade]

Looks like there should be a third vacuum hose according to this:

http://members.shaw.ca/dsm.1000q/Engineprimer/2G/throttlebody.htm

And I could swear I have 4 on mine.

 

[snowborder714]

Late 2g's only had two nipples on the throttle body. My brother's stock one ('99) only had two.

 

[JMiller]

Ok, just checking, cause i've been having idle surge problems and wanted to make sure that wasn't causing it. Thanks

 

[bigf4]

jdm dsm throttle bodys have none. wish i still had mine to show a pic of it.

 

[snowborder714]

JDM throttle bodies have one nipple, at least all of the ones I've seen or heard of.

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[stefanOst]

JDM throttle bodies have one nipple, at least all of the ones I've seen or heard of.

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Yeah that's exactly like mine, only one port on it has a nipple, and on mine it is vacuum capped off (no emissions)

 

[snowborder714]

Yep, I have one of these on my car (as will my brother) and we pulled out that nipple and had the hole welded shut