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Old 01-10-2013, 11:39 AM   #9
Scooby Guru
Member#: 261612
Join Date: Oct 2010
Location: Minneapolis, MN
2002 WRX - 750WHP
9.5s @ 150mph


These are good pictures and a very common problem. Even at stock boost this can occur, but any increase in boost makes it much more likely. A bit of oil in these components is normal. I wouldn't worry about it, but maybe check it once in a while because that does look like a somewhat decent amount.

EVERY 08+ WRX should remove those rubber end caps from BOTH ends of the throttle body hose. You should also add a zip to to the vacuum line that goes from the top of the BPV to the back of the intake manifold. The nipple on the intake manifold does not have a barb and can easily slide off.
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xluben is offline   Reply With Quote