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· Function over form
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3,175 Posts
Discussion Starter · #1 ·
The line with red dots on it...



It looks like it runs from the throttle body to the fuel rail. Is this just another vacuum source? Do I NEED it? My car is a '97. I noticed some cars have it removed and that it didn't come on JDM cars. If it isn't necessary do I just remove the line and plug both ends?

If I don't need that line then it is acting like a huge intake leak.
 

· Speed limits = Guidelines
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2,352 Posts
thats not a coolant line...the coolant one ur thinking of is under the TB, damn near impossible to see without tabing the TB off...but anyways, thats definately a pollution vent, as what kind I really dont kno...could be fuel fumes from the rail, or crank case vent...ive had mine venting to the atmosphere for some time now...nothing ever came out of it that I had to be concerned about

I wouldnt block it off, may build up pressure somewhere, just let it vent out
 
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