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      02-28-2024, 03:40 AM   #1
Headachebmw
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Drives: 2009 bmw 335i
Join Date: Feb 2024
Location: Arizona

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Help with my fueling please

Hi I’m having a problem with my lpfp I have a 2009 bmw 335i n54. I have inlets/outlets, charge pipe, bov, 7.5 intercooler, 19t turbos, stage 2 lpfp on a mhd stage 2+ e30 tune. I was making sure everything was ready to get custom tuned when I noticed my lpfp was sitting at 50psi at idle and when I do I pull it jumps all over the place dipping into 40s while my high pressure is 17xx(lowest I’ve seen) then other times I see the lpfp at 77 and the high pressure at 2000. Did I buy a bad pump or is something else going on. I have the 2AAF code in my shadow codes with the 2c7b as the only active code.
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