Is my hpfp doomed? Now with logs

Rory · 07-28-2017, 05:06 AM

I've been getting quite a few 2AAF fuel pump plausibility codes recently. Two days I checked I've had 2FBD high pressure shadow code.

The car starts immediately and drives perfect apart from throttle surge on a cold start for about 2 mins then it's fine.

Flashed back to stock and still got it.

dyezak · 07-28-2017, 10:19 AM

You running a mix of e85?

hellokitty · 07-28-2017, 10:46 AM

post a log

Rory · 07-28-2017, 02:48 PM

No e85 , can't get it here.

I can't post a log at the moment as I flashed back to stock. Monitor module needs mhd installed.

Going to do some searching and see if inpa can help me read the output if hpfp vs what it should be

dyezak · 07-28-2017, 02:55 PM

I run the monitor module on stock cars no problem.

Frankie319 · 07-28-2017, 03:06 PM

Log

Rory · 07-28-2017, 03:08 PM

When I click on monitor all the values are zero now I'm back to stock?

I can still read codes and reset adaptions.

Rory · 07-28-2017, 03:13 PM

I've always used UK equivalent of 93 Oct fuel but last few tanks at stock I've just put in 95ron which is like 91 Oct.
Could this be upsetting things ?

07-29-2017, 09:46 AM

no

nikitino25 · 07-29-2017, 01:21 PM

So when you log or monitor your hpfp, what are you looking for? Is it not supposed to drop below a certain level when you do a pull?

speedychuck2 · 07-29-2017, 01:25 PM

I was always told sustained drops of below 1000psi are when to be concerned. Though of recent times, I've been told that less than 1500psi at the redline is something to worry about too.

1000psi is a good rule of thumb.

Rory · 07-29-2017, 03:32 PM

Quote:

Originally Posted by speedychuck2

I was always told sustained drops of below 1000psi are when to be concerned. Though of recent times, I've been told that less than 1500psi at the redline is something to worry about too.

1000psi is a good rule of thumb.

Ok thanks for that. I'll reinstall mhd so I can log again , don't know why my monitor isn't working on stock tune.

It sits at 725psi at idle which I saw on inpa and I've read that's Bang on for idle. So during normal driving less than 1000psi would mean a tired pump ?

Strange that the car starts so quickly and has no problems at full throttle etc.

LMB335IS · 07-29-2017, 06:37 PM

Quote:

Originally Posted by Rory

Quote:

Originally Posted by speedychuck2

I was always told sustained drops of below 1000psi are when to be concerned. Though of recent times, I've been told that less than 1500psi at the redline is something to worry about too.

1000psi is a good rule of thumb.

Ok thanks for that. I'll reinstall mhd so I can log again , don't know why my monitor isn't working on stock tune.

It sits at 725psi at idle which I saw on inpa and I've read that's Bang on for idle. So during normal driving less than 1000psi would mean a tired pump ?

Strange that the car starts so quickly and has no problems at full throttle etc.

You need WOT logs. Readings at idle or cruise won't tell you much. You need to see what it's doing under high load.

speedychuck2 · 07-30-2017, 02:56 AM

Quote:

Originally Posted by LMB335IS

You need WOT logs. Readings at idle or cruise won't tell you much. You need to see what it's doing under high load.

+1, rail pressure is actually controlled by an actuator on the fuel pump itself. It's not engine speed related as such so you need to be giving it the beans to see what it does.

Rory · 07-30-2017, 05:51 AM

Quote:

Originally Posted by speedychuck2

+1, rail pressure is actually controlled by an actuator on the fuel pump itself. It's not engine speed related as such so you need to be giving it the beans to see what it does.

Ah I see thanks didn't know that. I'll get some logs done today hopefully

Rory · 07-31-2017, 03:51 PM

Took a couple of logs tonight. Running on mhd stage 1+

I think the 2nd log may show a problem with the HPFP? I floored it and it took a few seconds before it actually started to pull properly, I see on the log theres a slow gradual increase in PSI on the rail instead of a nice quick one like you see when I change to 4th gear. Thoughts?

Also my boost is a bit below target a lot of the time, would this be tired boost solenoids?

http://datazap.me/u/rory/log-1501530...g=0&data=24-25

http://datazap.me/u/rory/log-1501530...0&data=2-24-25

Blue E92 · 07-31-2017, 04:29 PM

You should log lpfp pressure too next time.

Rory · 07-31-2017, 04:33 PM

LPFP is there under fuel low pressure sensor PSI

Blue E92 · 07-31-2017, 05:29 PM

How many miles on the car?

Rory · 07-31-2017, 05:47 PM

Very low for age 2007 with 27k miles.

dyezak · 07-31-2017, 05:47 PM

Log says your LPFP and HPFP are both fine. Rock solid on both of them.

speedychuck2 · 07-31-2017, 06:38 PM

Quote:

Originally Posted by Rory

Also my boost is a bit below target a lot of the time, would this be tired boost solenoids?

Could be one of a number of things. It's weird that it hits target then tails off.

Do your wastegates rattle at all? It won't do any harm to replace boost solenoids. Maybe look at your recirc valves and pipework and make sure everything is ok there too.

07-28-2017, 05:06 AM	#1
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	Is my hpfp doomed? Now with logs I've been getting quite a few 2AAF fuel pump plausibility codes recently. Two days I checked I've had 2FBD high pressure shadow code. The car starts immediately and drives perfect apart from throttle surge on a cold start for about 2 mins then it's fine. Flashed back to stock and still got it. __________________ 2007 E92 335i 6MT \| MHD Stage 1 + \| Mishimoto Intercooler \| Z4 Airbox mod Last edited by Rory; 07-31-2017 at 03:51 PM..
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07-28-2017, 10:19 AM	#2
dyezak General of the Armies 164 Rep 661 Posts Drives: X5M Join Date: May 2011 Location: Plano, TX iTrader: (2)	You running a mix of e85?
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07-28-2017, 10:46 AM	#3
hellokitty Brigadier General 2962 Rep 3,734 Posts Drives: '17 M3 ZCP DCT Join Date: Jul 2010 Location: Southern California iTrader: (2)	post a log __________________ 2017 F80 M3 ZCP / AA GESI DPs / Akrapovic Evo / BBS FI-R 19" / Bend Calibration ECUTEK Flex Fuel \| Bilstein B16 DDC + CS EDC / BMC Filters / BMS OCC / CSF HE / ESS CP / Nitto NT555R2 / PD Crank Hub / SPL Suspension / Uniden R7 / Wagner Top Mount IC 2021 Mini GP3 / BMC Filters / BM3 / Cary Jordan E30 / Wagner IC / Remus Race
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07-28-2017, 02:48 PM	#4
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	No e85 , can't get it here. I can't post a log at the moment as I flashed back to stock. Monitor module needs mhd installed. Going to do some searching and see if inpa can help me read the output if hpfp vs what it should be
	Appreciate 0 Quote

07-28-2017, 02:55 PM	#5
dyezak General of the Armies 164 Rep 661 Posts Drives: X5M Join Date: May 2011 Location: Plano, TX iTrader: (2)	I run the monitor module on stock cars no problem.
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07-28-2017, 03:06 PM	#6
Frankie319 Registered 2 Rep 4 Posts Drives: BMW 135 Join Date: Jul 2017 Location: AZ iTrader: (0)	Log
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07-28-2017, 03:08 PM	#7
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	When I click on monitor all the values are zero now I'm back to stock? I can still read codes and reset adaptions.
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07-28-2017, 03:13 PM	#8
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	I've always used UK equivalent of 93 Oct fuel but last few tanks at stock I've just put in 95ron which is like 91 Oct. Could this be upsetting things ?
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07-29-2017, 09:46 AM	#9
FCobra94 Guest 0 Rep n/a Posts Drives:	no
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07-29-2017, 01:21 PM	#10
nikitino25 Captain 91 Rep 817 Posts Drives: '07 E92 335i Join Date: Dec 2011 Location: Missouri iTrader: (2)	So when you log or monitor your hpfp, what are you looking for? Is it not supposed to drop below a certain level when you do a pull?
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07-29-2017, 01:25 PM	#11
speedychuck2 Private First Class 46 Rep 116 Posts Drives: '09 135i Manual Join Date: Aug 2016 Location: Suffolk UK iTrader: (0) Garage List 2009 135i 6MT [0.00]	I was always told sustained drops of below 1000psi are when to be concerned. Though of recent times, I've been told that less than 1500psi at the redline is something to worry about too. 1000psi is a good rule of thumb. __________________ '09 AW N54 135i 6MT - CIC - Logic 7 HiFi - MHD Stage2+ 98 - Wagner Evo 1 Performance I/C - VRSF Intakes - STC downpipes - Berk Race Axleback - 550i Clutch - BMWP Mirrors / Diffuser / Grilles / Skirts / Y-Pipe - SSDD Spoiler 12.9sec 1/4 mile @ 112mph - Santa Pod
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07-31-2017, 03:51 PM	#16
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	Took a couple of logs tonight. Running on mhd stage 1+ I think the 2nd log may show a problem with the HPFP? I floored it and it took a few seconds before it actually started to pull properly, I see on the log theres a slow gradual increase in PSI on the rail instead of a nice quick one like you see when I change to 4th gear. Thoughts? Also my boost is a bit below target a lot of the time, would this be tired boost solenoids? http://datazap.me/u/rory/log-1501530...g=0&data=24-25 http://datazap.me/u/rory/log-1501530...0&data=2-24-25 __________________ 2007 E92 335i 6MT \| MHD Stage 1 + \| Mishimoto Intercooler \| Z4 Airbox mod Last edited by Rory; 07-31-2017 at 04:05 PM..
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07-31-2017, 04:29 PM	#17
Blue E92 Second Lieutenant 91 Rep 225 Posts Drives: 335is e92 Join Date: Jun 2016 Location: Tri-Cities, TN iTrader: (0) Garage List 2012 BMW 335is [10.00]	You should log lpfp pressure too next time.
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07-31-2017, 04:33 PM	#18
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	LPFP is there under fuel low pressure sensor PSI __________________ 2007 E92 335i 6MT \| MHD Stage 1 + \| Mishimoto Intercooler \| Z4 Airbox mod
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07-31-2017, 05:29 PM	#19
Blue E92 Second Lieutenant 91 Rep 225 Posts Drives: 335is e92 Join Date: Jun 2016 Location: Tri-Cities, TN iTrader: (0) Garage List 2012 BMW 335is [10.00]	How many miles on the car?
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07-31-2017, 05:47 PM	#20
Rory Lieutenant 97 Rep 299 Posts Drives: E92 335i SE 6MT Join Date: Aug 2013 Location: Lanarkshire, Scotland iTrader: (0) Garage List 2005 Z4 3.0 6MT [0.00] 2007 335i 6MT [0.00]	Very low for age 2007 with 27k miles.
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