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      10-17-2012, 02:06 PM   #31
shiv@vishnu
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United_States
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Drives: X1, 335i
Join Date: Sep 2006
Location: SF Bay, CA

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This proposed pump upgrade won't work. Look closely at the bottom of the oem LPFP bucket. There is a Venturi jet that uses a dedicated vent from the factory pump to keep the bucket full (even well the surrounding fuel level in the tank is low). Without this vent and functional venturi jet, this important function will be eliminated. In other words, you can't just drop in another pump. Been there, done that.

Last edited by shiv@vishnu; 10-17-2012 at 02:50 PM.