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Old 11-22-2012, 12:19 AM   #1
Joe02wrx
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Default boost leak testing: disappearing boost problem

okay so recently i just put a air oil separator on my car and now when i boost leak test my car i have a problem. I should also say that now my idle AF correction is maxed out on learning view from RR but wide open throttle pulls doesnt pull any fueling maybe like two % which is okay.

The Problem: when i boost leak test my car i plug the little hose off the intake manifold that goes to the purge control valve, and i also plug the crankcase breather hose that goes into the into my turbo inlet. when i pressurize the system all air disappears. i do not know where it goes? if i pressurize my system and pull the hose off immediately that i just used to put air in the system no air even comes out.. can somebody point me in the right direction please? i know its long i apologize. could something be up with the idle air control valve where it just releases all the air?
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Old 11-22-2012, 04:25 PM   #2
Joe02wrx
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pulled off the throttle body to just clean in and saw that the gasket was blown. the piece between the idle air control valvle and the throttle body was barely hanging on. i believe i have found my problem but i won't know for sure until i can go to subaru and get a gasket tomorrow.
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Old 11-23-2012, 08:42 PM   #3
Joe02wrx
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Replaced gasket. Air still disappears
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Old 11-24-2012, 03:18 PM   #4
Joe02wrx
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It was my air oil separator Guys. Can delete
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Old 11-24-2012, 05:48 PM   #5
danger1138
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Which one is that^^? Off what sensor.?
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Old 11-25-2012, 01:39 PM   #6
Joe02wrx
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The actual throttle body gasket was blown
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Old 11-25-2012, 01:40 PM   #7
Joe02wrx
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Unless you're referring to the air oil separator, that's an aftermarket part and doesn't have any sensors to it
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