iDrive Fuel Pump Warning

ferocity02 · 10-01-2021, 12:12 AM

2013 135is N55 here with Pure stage 2 and a custom Wedge E30 tune. I'm also running the Spool FX-150 HPFP and Fuel-It stage 2 LPFP. Recently I've been getting the Fuel Pump warning. A little triangle with the exclamation point ⚠️ pops up on the cluster and if I scroll to Check in the BC menu, the fuel pump warning pops up on the iDrive screen.

It is very intermittent. It usually only happens when fully warm and cruising at steadying speed. It will come and go every 20-60 seconds. There are zero codes stored in the DME. Logs look fine.

ferocity02 · 10-15-2021, 12:21 AM

After some research it seems like this could be the EKP module giving up due to the stage 2 fuel pump pulling extra current. Looks like there are ways to add active cooling to the module via a 12v fan, but should do I need to replace my module first?

Is coding required when changing the module?

jlegelis · 10-21-2021, 04:51 PM

The EKP can be re-coded to remove the warning. Ask the FuelIt guys or Google around - I did it on mine.

jlegelis · 10-21-2021, 04:52 PM

fyi: https://www.e90post.com/forums/showthread.php?t=1456886

FireBlaze · 10-21-2021, 09:02 PM

You need to reprogram the EKP to increase the voltage threshold. You might also want to do this mod to the EPK module to keep it cool.

ferocity02 · 10-22-2021, 10:25 AM

Thanks all! I was planning to add a fan and heatsinks to the module. I'll need to look at coding the module too.

10-01-2021, 12:12 AM	#1
ferocity02 Colonel 530 Rep 2,083 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	iDrive Fuel Pump Warning 2013 135is N55 here with Pure stage 2 and a custom Wedge E30 tune. I'm also running the Spool FX-150 HPFP and Fuel-It stage 2 LPFP. Recently I've been getting the Fuel Pump warning. A little triangle with the exclamation point ⚠️ pops up on the cluster and if I scroll to Check in the BC menu, the fuel pump warning pops up on the iDrive screen. It is very intermittent. It usually only happens when fully warm and cruising at steadying speed. It will come and go every 20-60 seconds. There are zero codes stored in the DME. Logs look fine. __________________ 2013 135is DCT Carbon Black Metallic
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10-15-2021, 12:21 AM	#2
ferocity02 Colonel 530 Rep 2,083 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	After some research it seems like this could be the EKP module giving up due to the stage 2 fuel pump pulling extra current. Looks like there are ways to add active cooling to the module via a 12v fan, but should do I need to replace my module first? Is coding required when changing the module?
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10-21-2021, 04:51 PM	#3
jlegelis Private First Class 33 Rep 129 Posts Drives: 2013 E92 N55 MT MSport Join Date: Jan 2013 Location: Boston, MA iTrader: (0)	The EKP can be re-coded to remove the warning. Ask the FuelIt guys or Google around - I did it on mine.
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10-21-2021, 04:52 PM	#4
jlegelis Private First Class 33 Rep 129 Posts Drives: 2013 E92 N55 MT MSport Join Date: Jan 2013 Location: Boston, MA iTrader: (0)	fyi: https://www.e90post.com/forums/showthread.php?t=1456886
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10-21-2021, 09:02 PM	#5
FireBlaze Private First Class 67 Rep 143 Posts Drives: 2013 E92 335i 6MT M-Sport Join Date: Mar 2016 Location: Torrance, CA iTrader: (0)	You need to reprogram the EKP to increase the voltage threshold. You might also want to do this mod to the EPK module to keep it cool. __________________ VRSF DP, VRSF 7" Intercooler, BMS OCC, Stg 2 LPFP, Custom MHD E30 Tune, Late Model E-Series N55
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10-22-2021, 10:25 AM	#6
ferocity02 Colonel 530 Rep 2,083 Posts Drives: 2013 135is Join Date: May 2014 Location: USA iTrader: (8)	Thanks all! I was planning to add a fan and heatsinks to the module. I'll need to look at coding the module too.
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