Quote:
Originally Posted by knucklesplitter
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.
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I *think* we successfully tested for that. We pressurized the TMIC (with Y pipe and bypass valve attached). We then plugged the end of the Y pipe that connects to the turbo with a plug and connected the small nipple on the bypass valve to the plug (so it would see boost pressure). Then we were able to fill that system with 22PSI before it started leaking through the BPV.
I tried to borrow a bpv locally, to make sure, but no luck on I-Club.
I think it's the MBC. When we did the standard boost leak test through the inlet, it started leaking and making a funny noise at 8psi.