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Old 07-08-2012, 09:36 AM   #11
Scooby Guru
Member#: 23553
Join Date: Aug 2002
Chapter/Region: MAIC
Location: Grove City, PA
2005 STI - Insanity!
2014 WRX - Daily


Did you see the question I was asking about the injectors and rails? When I first installed the rails I didnt put an insulator on the upper part of the injector. When I went to plug the wire harnesses into the injectors (after installing the entire manifold assembly on the engine) I noticed that the injectors could be moved around 1/4 inch up and down. There's no way that the bottoms would hold pressure so something was obviously wrong.

I had a set of injectors out of an 2002 wrx so I compared the two to see that the stock injectors had an insulator at the top seat where they mate to the fuel rail. I pulled the insulators off the wrx injectors and put them on the ID2000s to see if that made a difference. That made them fit much better but I am worried because the body on the ID2000s is not squared off like the stock injectors. I could easily see the ID2000s sliding around when the rubber insulators get hot.

No insulators (look at the contour of the injector bodies):

With insulator installed:
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