Coding Higher Voltage Limit to Avoid 2AAE Fuel Pump Error Code

jts1981

Private
Jan 29, 2018
46
28
0
NYC
Ride
Z4
It seems that just doing this coding will work out fine. How much can the stock ekp take, 24a? I'm running a walbro 525 pump now and I think thats what it needs.
 

langsbr

Captain
Apr 5, 2017
1,189
678
0
Ride
07 335i 6MT e90
So is the consensus that this code is a non issue and can be eliminated by changing the coding or is it indicative of an issue? I get it quite a bit after a WOT pull, and figured it was just a 'normal' error that could be cleared and ignored. I only have a PR Stage 2 pump. Could it be that my EKP is weak or dying?
 

9krpmrx8

Sergeant
Nov 5, 2016
459
244
0
San Antonio, Texas
It's normal, or at least common when people upgrade to the Walbro 450. Coding it fixed it for me, my coder (N54 owner) was skeptical and thought for sure my EKP was bad but I have not had any issues since he coded it. I am N55 so no LP sensor but I will be installing one in a replacement fuel line and a FP gauge as soon as I find the time.
 
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JBacon335

Corporal
Nov 7, 2016
218
95
0
38
Toms River, NJ
Ride
07 335i Sedan, 1988 Mustang GT
Anyone try playing with different characteristic curves with an upgraded pump? Was wondering if one might have less pressure fluctuations than another
 

mevlanN54

New Member
Mar 27, 2021
1
0
0
16
Macedonia 🇲🇰
I get that 2AAE “fuel pump plausibility” code in the summer time almost always immediately after clearing codes and driving a minute. I’m running the original Fuel-It Stage 2 LPFP upgraded pump which I believe is a Walbro 450. I have an EKPM3. (I haven’t gotten that code lately now that it’s cold in Philly.)
where can i buy it