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mrderekmeier mrderekmeier is offline
Junior Member
Posts: 52
Join Date: Jul 2015
Car: 2012 BMW 535i M Sport 6spd
Default 06-06-2019, 01:37 PM

Originally Posted by Dave @ BMS/Fuel-It!
Try & capture a log

I looked at your old log & it just tanks. Makes me think 1 of 3 things

Bad hpfp
Bad LPFP (not super likely seeing hardware is new- assuming installed coreect)
Failing EKP
Did not start happening until after the LPFP install. It is that or the EKP. It occurs most of the time normal driving, not WOT.

Do you have any of the LPFP Socks for the factory pump in 535i F10? Mine got tossed when I put in the Walbro 450 and I used the sock from that install kit. I'd like to have the OEM sock and put factory pump in to diagnose.

2012 F10 535i 6MT:
Pure Stage 2 Turbo, GFB DV+, MHD JB4 BEF, Phoenix Racing PI Intake Manifold with 550cc injectors & BMS Controller, Walbro 450 LPFP, VRSF D*, CP, G-Plus FMIC, M5 Mufflers, 550i Clutch, E85 Blend (E40)
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