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Old 08-30-2010, 04:14 PM   #3
gandm99
Scooby Newbie
 
Member#: 58709
Join Date: Apr 2004
Chapter/Region: SCIC
Location: Los Angeles
Vehicle:
2004 WRX STi
WRB

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one small clarification about my original post... I had stated that the Meth was blowing out the intake due to the bad valve. That is no longer confirmed and factual. I sprayed meth briefly over the weekend and did still notice the smell when the windows were down.

Really not sure where the meth is leaking from at this point. The nozzle is located in the TMIC just before the TB, and i've checked for leaks from the nozzle to the HSV and haven't found any (also re-trimmed the plastic hose ends and re-did the connections everywhere). I also know it's not leaking between the HSV and the pump since that line holds pressure and I don't smell meth unless the windows are down. I'm starting to think that my Intake manifold/engine mate may have a very small leak that only leaks under higher boost pressure... maybe upwards of 18 psi or so since I'm able to build boost and hold my 18 psi target without issue.

looks like another round of intake pressure testing is in my future...
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