Thread: Whistling
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      01-10-2013, 07:39 PM   #5
sharkatron
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Drives: `09 135i
Join Date: Mar 2012
Location: Melbourne

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Just thinking about boost levels, and if there is a leak, how much of a leak is needed before a CEL is thrown? If it's pin sized, there won't be much, but obviously if it's a few mm, then yeah, a large drop will be experienced. But is it thrown if there is a leak, no matter how small? Is it that sensitive?

And if I am losing boost pressure, is the ECU going to make the turbos work harder to reach target boost?