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Old 07-14-2019, 08:03 PM   #64
Scooby Newbie
Member#: 78728
Join Date: Jan 2005
Chapter/Region: Tri-State
Location: Jim Chunk, PA
04 STi


So a little update for the car. The "valve cover" leak turned out to be a leak from my AVCS solenoid. Decided to replace both the solenoid and the access cover plate gasket:

Had to slightly lift the fuel rails to get at the access cover plate:

So here's where things got hairy. After replacing the solenoids and the gaskets, the car started up with a terrible idle. Decided to replace the MAF sensor, as has never been replaced.

So I turned the car back on and it worked a little better, but the idle was still off pretty bad. So I decided to test for a vacuum leak. I found some videos on YouTube giving out how-tos on making a home made smoke vacuum leak testers. So for about $25 I made one:

Sure enough, there is a vacuum leak coming out of the injector ports on the TGV delete rails, passenger side. Ordered the little o rings that go over the injector nozzles. I will double check that they insert correctly when I install them, and I'll run the smoke test again just to ensure an air-tight seal.
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Dash_Martino is offline   Reply With Quote