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MazdaSpeed 3 - Engine, Transmission & Driveline Discussion of engine, tranny and drivelines.


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Old 01-01-2015, 02:56 PM   #1
 
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Default Boost issue
So I am in the process of tuning my ms6, I am somehow pressurizing my vc. I noticed this when doing a boost leak test. I have pressure building and finally escaping from the oil cap if all places. Could it be a bad pcv valve? I am removing the breather from the vc to the tip. Where do I start with figuring this out? I did do a search and did not find much.
Thanks for the help
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Old 01-01-2015, 03:13 PM   #2
 
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I was under the impression that when doing a boost leak test you will lose a little bit of pressure past the rings into the crankcase especially if the engine is cold.
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Old 01-01-2015, 03:22 PM   #3
 
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Yup, there's always open valves somewhere.
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