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Car is bogging
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01-12-2023, 10:13 PM | #1 |
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Drives: 07 bmw 335i e90
Join Date: Apr 2022
Location: Guam
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Car is bogging
I just changed my lowpressure fuel pump to stage 1 reading at 74psi stable. I also change my high pressure fuel pump reading lowest 700 psi. It revives good at netrual but wen put on drive it bogs & die out. No trouble code. Need help. What can it be?
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01-13-2023, 02:00 PM | #2 | |
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Quote:
If I had to guess, I'd say it's got to be something with your LPFP or HPFP since you were just messing with them. Can you run a log and watch the fuel pressures and see what happens to them with the car dies?
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2007 335i, BMS DCI, BMS Chargepipe w/Tial BOV, ARM Catless Downpipes, silicone inlets, Bilstein B12 Prokit Suspension, Whiteline subframe bushings, Front/Rear M3 control arms, G-Plus FMIC, Stage 2 LPFP, Custom E40 tune by Justin (V8Bait), xHP stage 3 transmission flash, RB Two Turbos....10.90 @ 128mph
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01-13-2023, 07:06 PM | #3 |
New Member
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Rep 12
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Drives: 07 bmw 335i e90
Join Date: Apr 2022
Location: Guam
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I use mhd. My vehicle is 2007 bmw 335i n54 sedan. My mod are mhd , xhp flasher tool. Cone airintake, stage 2 turbo. Throttle booster, I just change low pressure with stage 1 fuel it pump series to exist pump & high pressure changed also. Lpfp reading at idle 60-74 psi. Hpfp from 600 - 700psi. When I put on drive car dies out on low rpm but on park engine revs good . When. I start it after it dies out psi is over 1200 -2000. Then drop to like 700psi. What psi should range should lpfp & hpfp be??
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