JB4tech.com - International Turbo Tuning Discussion
(#1)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 29DC: Cylinder injection cutout (with data logs) - 11-18-2021, 05:16 PM

I attempt to go WOT from the start and get a
29DC Cylinder Injection Cutout
DataLink
I have:
2009 535i xDrive
Walbro 535 fuel pump
Gutted cats
7.5 stepped fmic
Charge pipe with tial bov
Stage 2+ MHD tune
New boost solenoids
Oil Cooler w/block off plate

Last edited by UDFxRookie; 11-28-2021 at 11:31 AM.. Reason: url wont stay
Reply With Quote
(#2)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 11-27-2021, 10:52 PM

I had a walbro 450 but had very very low LP pressure 20-35... Swapped in a new 535 and have the same low pressure... It has a new filter/regulator from FCP and I tested a new ekp3 unit.... Still low pressure.... What could be the issue?
Think I got a faulty regulator/filter setup? What can I try/test?

I tried my old FPR/Filter and got 38-39 on WOT

https://***********/u/udfxrookie/log...og=0&data=3-20
***********/u/udfxrookie/log-1638047771?log=0&data=3-20

change all the ****** to datazap(dot)me

Last edited by UDFxRookie; 11-28-2021 at 11:32 AM..
Reply With Quote
(#3)
Old
Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
Tuner
 
Posts: 21,116
Join Date: Oct 2012
Car: 135i
Default 11-29-2021, 01:30 PM

URL won't stay because we don't review logs on 3rd party sites. You'd need to upload a JB4 CSV file for review.



Click on our banner to visit our website!
Video of our Stage 2 LPFP upgrade installation.

BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.
Reply With Quote
(#4)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 11-29-2021, 06:16 PM

Thank you! =) Datalog attached
Reply With Quote
(#5)
Old
Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
Tuner
 
Posts: 21,116
Join Date: Oct 2012
Car: 135i
Default 12-07-2021, 11:41 AM

You'd have to upload a JB4 log for our input/assistance.



Click on our banner to visit our website!
Video of our Stage 2 LPFP upgrade installation.

BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways.
Reply With Quote
(#6)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 12-07-2021, 12:53 PM

Not looking for JB4 assistance and not installing one and adding more to try and identify an issue. There's a log with (I'm pretty sure) all the same information. I can pull a log with a stock tune, there's an issue and it shouldn't matter if I have a JB4 installed or not. I guess I'm looking for help from someone that does not need a JB4 specific log then
Reply With Quote
(#7)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 12-09-2021, 01:20 PM

Ok.... so I installed a NEW LP Sensor, and NEW 535 pump with a NEW filter/regulator on the drivers side and STILL my LPFP psi is 40-46, 5-6lbs of boost (stock) at WOT.
Can anyone tell me what to look at.

And I'm not looking for someone that needs a JB4 log to help me. Hopefully someone can figure out what I should be looking at when I have all new stuff in the tank.
Reply With Quote
(#8)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 12-11-2021, 04:52 PM

Checked the hoses by air compressor/water bucket test lol. I had both ends outside the bucket and blew air through all lines (to ensure no actual line pressure)
The ONLY part that had air bubbling was from the top of the second photo which appears to be part of some...ball/spring mechanism. The top hat of the bucket
I bought on ebay that was from a 09 535i (not xi like mine) does NOT have this "mechanism" so there is literally NO air leakage. This is literally the only part I
have NOT swapped out so I will be doing this tomorrow morning and reporting back.... praying it's a replacement part the previous owner used and they got the
wrong one since I've had low pressure since I bought the car.


Reply With Quote
(#9)
Old
UDFxRookie UDFxRookie is offline
New Member
 
Posts: 15
Join Date: Nov 2021
Car: 09 535xi e60
Default 12-12-2021, 12:23 PM

THAT was it, the part I got from eBay WAS actually from a 535i/xi and the one that was in the car (from previous owner "fixing" it) when I got it was from an NA.
A friend chimed in when he saw the top hat: "You've found the fuel leak. Looks like someone incorrectly installed the part that has the fuel pressure regulator. This part is intended for the non-turbo cars that use the fuel pump relay. The turbo direct injected engines use the EKPS fuel pump module that doesn't need the pressure regulator. ~ pshovest"
I'm getting normal 70+psi now!!!
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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

Forum Jump




vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2022, JB4tech.com