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BMW 3-Series (E90 E92) Forum
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HPFP dump to 1000 PSI after 3rd-4th shift
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| 05-10-2015, 04:43 PM | #1 |
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Private First Class
 48
Rep 166
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HPFP dump to 1000 PSI after 3rd-4th shift
So I have a data log, running 100% E85... Earlier the same day I had just run 2nd-3rd-4th no data log, car felt great, but then it started stuttering and blew limp mode. Codes said fuel pressure plausibility (29F1), so I cleared them, restarted the car and then ran a 3rd-4th gear pull with logs.
No codes this time, everything was fine. Checked the logs and saw the HPFP take a little bit of a dump I've never seen before. It recovers almost immediately back up to 1800 PSI at around 5200 RPM, so I'm just double checking there isnt a problem. AFR, fuel trims, timing, everything looks good though.... maybe my HPFP just had a hickup. Mods are in sig. I just wanted a few second opinions to be sure. http://datazap.me/u/shushikiary/d37w...a=2-9-10-11-13
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BMS DCI, BMS OCC, VRSF stepped 5" FMIC, VRSF CP, VRSF DP's, SPEC stage 3+ and SMFW, PRW stage 3 LPFP, MHD custom E85 tune, solid motor mounts, RB PCV valve, SS brake lines, Prospeed RS683 brake fluid, Strongflex poly bushings, VTT inlets, M3 rear control arms, ECS trailing arms, turbo smart DV's, CP-E PI, VTT HS CP, UUC short shifter, custom solid transfer-case mount, RBTurbo vacuum side OCC, PRW upgraded ignition coils.
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