Subaru Enthusiasts Car Club of the Sierras - View Single Post - Boost Max Lowered, Then Detonation, High MAF V and High IDC's

knucklesplitter · 2013-05-28, 08:22 AM

Check your bypass valve. I bet it is leaking. That will not show up on a boost-leak test, because it is looping back into the inlet, which is also pressurized during the test.

2013-05-28, 08:22 AM	#2
knucklesplitter EJ205 Real Name: Matt Taylor Join Date: Jun 2005 Location: Cousin-Fck, Carolina Posts: 1,474 Wish in one hand and sht in the other...	Check your bypass valve. I bet it is leaking. That will not show up on a boost-leak test, because it is looping back into the inlet, which is also pressurized during the test. Last edited by knucklesplitter; 2013-05-28 at 08:24 AM.