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05-01-2018, 09:06 PM | #1 |
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Shite. Possible HPFP issue.
2011 running MHD map 1, 93 and 91 maps. Using 93 gas most often.
2C01 - High fuel pressure, plausability; pressure too low. Sometimes a slightly rough idle, often takes 8+ cranks to start. I'll try flashing it back to stock to see just for kicks. There are quite a few threads on this but is there an extended warranty or service bulletin on this? Info seems to be conflicted. I have an auto x this weekend. Perhaps I HAD an auto x this weekend. :P thanks and regards, Jim |
05-02-2018, 10:26 AM | #2 | |
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2011 Space Grey 135i DCT:
Pure Stage 2, Fuel-it Stage 2 LPFP, ST XTA Coilovers, Berk Street Axle Back, MHD Stage 2+, VRSF Catless DP, VRSF 5" FMIC, VRSF LCP, BMS UCP, M3 FSB, e92 M3 Drivers Seat. |
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05-02-2018, 05:39 PM | #3 |
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05-02-2018, 08:21 PM | #4 |
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I have the same issue, unsolved.
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[Work Meister s1][KW V2][Icarbon rear diffuser][1M style] [BMW perf spoiler][eye lids] [Lux angel eyes][Rpi red scoops][MHD Stage 2][CPE dp][CPE CP][VSRF 7''][Injen intake][matte grills][Alpine speakers][P3 Vent Gauge][Custom Alcatraz steering wheel][ARK Cat-back exhaust]] |
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05-03-2018, 11:51 AM | #5 |
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Drives: 2012 E92 335i M-Sport
Join Date: May 2017
Location: San Diego, CA
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99% sure both cars' HPFP are failing. Long cranks and hesitation at WOT are telltale signs of HPFP failure.
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12’ E92 335i 6AT - Alpine White M-Sports Package
Mods - | MHD Stage2+ ACN91 OTS Map | K&N Drop-in | VRSF Kittenless D0wnpipe | VRSF CP | VRSF 7” FMIC | xHP Stage 3 | Euro Headlight Switch | Avant Garde M359 | Michelin PS4S |
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05-03-2018, 05:43 PM | #6 | |
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Went out this morning to take it to my BMW guy, everything was fine. I'll follow up if/when it happens again. (shrug) -J |
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05-07-2018, 12:34 PM | #7 |
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More info
So I flashed it back to stock, same result in the same amount of time.
Idle is rougher, and the call to the dealer asking for a guess / service history on the car and the service manager leaned more toward a coil pack. That has been the predominant issue over the N55 HPFP. Car does have 62k on it's probably due. I'm going to take it to the BMW guy I know personally first Wednesday morning. -J |
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05-07-2018, 09:59 PM | #8 | |
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05-10-2018, 01:30 PM | #9 | |
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https://www.ecstuning.com/b-genuine-...13517616446kt/ Does anyone have experience or concerns with this unit? Last edited by Luftmeister; 05-10-2018 at 01:31 PM.. Reason: wrong link |
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05-10-2018, 03:37 PM | #10 |
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I'd go with FCP Euro:
https://www.fcpeuro.com/products/bmw...mp-13517616170 Lifetime warranty if the new one ever fails and needs to be replaced.
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2011 BMW 135i ///M-Sport, DCT
Bilstein B12 kit, Dinan camber plates, M3 front control arms, Whiteline poly RSFB, MHD Stage 1, cp-e Charge Pipe, H&R Front sway bar, BMW performance diffuser |
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05-10-2018, 04:13 PM | #11 | |
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2011 Space Grey 135i DCT:
Pure Stage 2, Fuel-it Stage 2 LPFP, ST XTA Coilovers, Berk Street Axle Back, MHD Stage 2+, VRSF Catless DP, VRSF 5" FMIC, VRSF LCP, BMS UCP, M3 FSB, e92 M3 Drivers Seat. |
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05-10-2018, 04:41 PM | #12 | |
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I've had a weird HPFP-related issue at a few autocross events that had me looking at a pump replacement, but I think I've figured out how to prevent it for now...
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2011 BMW 135i ///M-Sport, DCT
Bilstein B12 kit, Dinan camber plates, M3 front control arms, Whiteline poly RSFB, MHD Stage 1, cp-e Charge Pipe, H&R Front sway bar, BMW performance diffuser |
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