BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      06-14-2019, 12:48 PM   #1
f87CSdrifterential
First Lieutenant
f87CSdrifterential's Avatar
United_States
188
Rep
327
Posts

Drives: 2020 M2 CS
Join Date: Apr 2015
Location: NH

iTrader: (4)

Upgrading Fuel Pump Wiring

Looking on the Fuel-It site there are notes annotated in red in regards to the Stage 2 or higher bucket pumps drawing too much power, causing the EKP module to overheat and shut down. I understand this is a disclaimer on their part though I did find a decent amount of threads on it.

In other cars I have owned I have simply interrupted the OEM pump power wire at the plug and used the power from the module to trigger a relay running a direct 10g fused lead from the battery to the pump for higher pump voltage. This is done to increase from 12v to 14.4v at the pump maximizing flow.

After searching a while I can't find much info about anyone doing this with the e series. Can this be done without causing any damage to the EKP module or other vehicle components?

Additionally does anyone have a source for the male and female power connectors so I can make a harness instead of cutting the factory wiring?
Appreciate 0
      06-17-2019, 01:51 PM   #2
dtla1
Colonel
dtla1's Avatar
828
Rep
2,232
Posts

Drives: 2011 135i, Space Grey
Join Date: Apr 2014
Location: Silicon Valley

iTrader: (2)

Following you on this. I have a second hand pump and a new EKP module, but would be curious if this turns out to be a better route.
Appreciate 0
      06-29-2019, 06:03 PM   #3
f87CSdrifterential
First Lieutenant
f87CSdrifterential's Avatar
United_States
188
Rep
327
Posts

Drives: 2020 M2 CS
Join Date: Apr 2015
Location: NH

iTrader: (4)

the answer I got from Fuel-It was that it can not be wired this way because it's a PWM module. My research then lead me to this page.

https://www.knowyourparts.com/techni...ng-fuel-pumps/
Appreciate 0
Post Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 04:07 AM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST