Fuel pump issues. Feedback appreciated

R.G. · 08-26-2013, 09:22 PM

I've been running an E40 pro-tune for about 5k miles. Was getting fuel mixture shadow codes the entire time (P29e0 and P29e1). I used to get those codes prior to running ethanol but after I updated my injectors it stopped until I ran E40 now theyre back. I started getting fuel pump plausibility codes (P2AAF) with an SES light so I decided its time to upgrade my pump. Installed a Walbro 455 INLINE with my stock pump. Fuel pump plausibility codes still coming up and the SES light pops up anytime Im in 6th gear. Im also getting the fuel pump warning on my Nav screen system check.

Can anybody give me some feedback as to whats normal and whats not?

Thanks in advance

1DirtyFive · 08-26-2013, 09:31 PM

Quote:

Originally Posted by R.G.

I've been running an E40 pro-tune for about 5k miles. Was getting fuel mixture shadow codes the entire time (P29e0 and P29e1). I used to get those codes prior to running ethanol but after I updated my injectors it stopped until I ran E40 now theyre back. I started getting fuel pump plausibility codes (P2AAF) with an SES light so I decided its time to upgrade my pump. Installed a Walbro 455 INLINE with my stock pump. Fuel pump plausibility codes still coming up and the SES light pops up anytime Im in 6th gear. Im also getting the fuel pump warning on my Nav screen system check.

Can anybody give me some feedback as to whats normal and whats not?

Thanks in advance

Mines doing the same

BoostAddict · 08-26-2013, 09:31 PM

Check all your wiring, and hoses. Also did you upgrade to a higher amp fuse? People seem to be forgetting that lately.

135Pats · 08-26-2013, 09:31 PM

How are you looking on logs? In Terms of trim and actual psi

R.G. · 08-26-2013, 09:34 PM

Quote:

Originally Posted by ***********

Check all your wiring, and hoses. Also did you upgrade to a higher amp fuse? People seem to be forgetting that lately.

I checked my fuse and its a 20. What amp fuse should I upgrade to? I didnt know it was necessary

Quote:

Originally Posted by 135Pats

How are you looking on logs? In Terms of trim and actual psi

Havent logged yet. It's dumping rain in my city all week tough to get some in

Thanks for the quick input guys

BoostAddict · 08-26-2013, 09:39 PM

Quote:

Originally Posted by R.G.

I checked my fuse and its a 20. What amp fuse should I upgrade to? I didnt know it was necessary

I believe the recommendation is a 25amp fuse.

R.G. · 08-26-2013, 09:47 PM

Quote:

Originally Posted by ***********

Quote:

Originally Posted by R.G.

I checked my fuse and its a 20. What amp fuse should I upgrade to? I didnt know it was necessary

I believe the recommendation is a 25amp fuse.

Ill give that a try
Thank you

R.G. · 08-26-2013, 11:22 PM

Replaced fuse with 25 amp. No change. Still getting fuel pump plaus code and nav screen sys fuel pump warning

Dark9T · 08-26-2013, 11:37 PM

Quote:

Originally Posted by ***********

I believe the recommendation is a 25amp fuse.

Better off with the 25amp fuse after the FFTEC inline pump upgrade? Becuz I did the same mod with RG and mine was fine with the stock fuse, no code find so far..

Dave W. · 08-27-2013, 12:02 AM

The fuse won't cause any codes, and it won't fix any codes. The reason to change the fuse is because two pumps draw more amps and you don't want to blow a fuse when you hit high boost and fuel demand goes up.

Try to get some logs showing LPFP pressure and trims once the rain stops. You can also try dropping the E content down to 30%.

R.G. · 08-27-2013, 01:31 PM

Quote:

Originally Posted by Dave W.

The fuse won't cause any codes, and it won't fix any codes. The reason to change the fuse is because two pumps draw more amps and you don't want to blow a fuse when you hit high boost and fuel demand goes up.

Try to get some logs showing LPFP pressure and trims once the rain stops. You can also try dropping the E content down to 30%.

I drove around with my cobb doing some live data watching and it seems that my LPFP PSI is hovering in the 83-87 PSI range and that when the fuel pump code is triggered on my Nav screen.

When I first started my car it was in the 70s and no code was showing. As soon as I start driving around I get in the 85 range the light is triggered.

3000GT MR · 08-27-2013, 02:59 PM

Raising my scaler from 1.1 to 1.2 solved it for me. It also smothed my idle

R.G. · 08-27-2013, 03:10 PM

Have to show some appreciation to Shiv at Vishnu. Took the time to call me personally and go through the issue.

Seems like its a calibration issue with my tune as you confirmed 3000. Going to have it adjusted hopefully will solve the issue for me as well.

Dark9T · 08-27-2013, 03:39 PM

Quote:

Originally Posted by R.G.

Have to show some appreciation to Shiv at Vishnu. Took the time to call me personally and go through the issue.

Seems like its a calibration issue with my tune as you confirmed 3000. Going to have it adjusted hopefully will solve the issue for me as well.

Time for you to get a OFT? Haha

1DirtyFive · 08-27-2013, 04:01 PM

I'm on stock tune, and I'm getting the same thing. Any explanation?

Dave W. · 08-27-2013, 11:32 PM

Quote:

Originally Posted by 1DirtyFive

I'm on stock tune, and I'm getting the same thing. Any explanation?

need more info

R.G. · 08-28-2013, 02:41 AM

A few logs.

One thing to make note of is that I had fuel scaler adjusted to 1.2 but ran these while still finishing a tank of E40

08-26-2013, 09:22 PM	#1
R.G. Captain 236 Rep 885 Posts Drives: Isetta Join Date: Jan 2013 Location: In my sub conscious iTrader: (12)	Fuel pump issues. Feedback appreciated I've been running an E40 pro-tune for about 5k miles. Was getting fuel mixture shadow codes the entire time (P29e0 and P29e1). I used to get those codes prior to running ethanol but after I updated my injectors it stopped until I ran E40 now theyre back. I started getting fuel pump plausibility codes (P2AAF) with an SES light so I decided its time to upgrade my pump. Installed a Walbro 455 INLINE with my stock pump. Fuel pump plausibility codes still coming up and the SES light pops up anytime Im in 6th gear. Im also getting the fuel pump warning on my Nav screen system check. Can anybody give me some feedback as to whats normal and whats not? Thanks in advance __________________ DocRace 6266 E92. M8 comp coupe, X5m
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08-26-2013, 09:31 PM	#3
BoostAddict Banned 48 Rep 932 Posts Drives: SGM 335i Join Date: Jan 2010 Location: Boynton Beach, FL iTrader: (4)	Check all your wiring, and hoses. Also did you upgrade to a higher amp fuse? People seem to be forgetting that lately.
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08-26-2013, 09:31 PM	#4
135Pats Major General 461 Rep 6,478 Posts Drives: A few BMWs Join Date: May 2012 Location: Maryland iTrader: (3)	How are you looking on logs? In Terms of trim and actual psi
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08-26-2013, 11:22 PM	#8
R.G. Captain 236 Rep 885 Posts Drives: Isetta Join Date: Jan 2013 Location: In my sub conscious iTrader: (12)	Replaced fuse with 25 amp. No change. Still getting fuel pump plaus code and nav screen sys fuel pump warning __________________ DocRace 6266 E92. M8 comp coupe, X5m
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08-27-2013, 12:02 AM	#10
Dave W. Lieutenant 5 Rep 538 Posts Drives: Porsche 951, 1992 Eagle Talon Join Date: Apr 2012 Location: SF Bay Area iTrader: (0)	The fuse won't cause any codes, and it won't fix any codes. The reason to change the fuse is because two pumps draw more amps and you don't want to blow a fuse when you hit high boost and fuel demand goes up. Try to get some logs showing LPFP pressure and trims once the rain stops. You can also try dropping the E content down to 30%.
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08-27-2013, 02:59 PM	#12
3000GT MR Major 267 Rep 1,392 Posts Drives: 09 335i/3000gt vr4 Join Date: Jun 2012 Location: Sav GA iTrader: (6)	Raising my scaler from 1.1 to 1.2 solved it for me. It also smothed my idle __________________ Have a single turbo and/or tired of burning up O2 sensors? Ask me about the new ADV O2 sensor retro kits! 335i 2010 e92 M-sport Mods: VM Top mount 6466, Aquamist HSF4 w/custom direct port. VRSF IC + Exhaust 335i 2009 e90 665RWHP VFF900 ST RIP .
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08-27-2013, 03:10 PM	#13
R.G. Captain 236 Rep 885 Posts Drives: Isetta Join Date: Jan 2013 Location: In my sub conscious iTrader: (12)	Have to show some appreciation to Shiv at Vishnu. Took the time to call me personally and go through the issue. Seems like its a calibration issue with my tune as you confirmed 3000. Going to have it adjusted hopefully will solve the issue for me as well. __________________ DocRace 6266 E92. M8 comp coupe, X5m
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08-27-2013, 04:01 PM	#15
1DirtyFive Enlisted Member 9 Rep 39 Posts Drives: 2010 BMW 135i Join Date: Nov 2011 Location: Las Vegas, NV iTrader: (1)	I'm on stock tune, and I'm getting the same thing. Any explanation?
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