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Old 05-05-2013, 02:35 PM   #18734
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Join Date: Sep 2012
Location: Old Greg's Cavern
Posts: 10,855
My Ride: 2004 330Ci OBM
Originally Posted by BBBoy323i View Post
Must be the reason why I'm getting 15mpg. But what could it be from? I gotta check it when I get my 1.4.0 scanner. Could it be disa valve, the sound does go away when my car drops to idle.

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I thought the jet sound was supposed to be the SAP. If you don't have SES light, then you likely don't have any significant vacuum leaks. At least not enough to justify 15 mpg. Though you live in Hawaii. I can't imagine driving there is very efficient.

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