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Ke93 Ke93 is offline
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Car: 335xi
Default Help me solve my sprak-plug condition! - 09-03-2020, 08:55 AM

i have a condition where while im in boost map 3 and i floor it it kicks me into map 4 and i cant figure out why.

i have the same issue and i called int the bmw dealership with some questions regarding whether or not the new index 12 injectors had been done to my car and they said yes in 2017 . as well as the hpfp.
now i have a fouled spark-plug 1 3 & 6 in my N54 and 3 was really wet. the other plugs are white in color i will post pics of all 6 plugs and hope that will help.

in summary do you think i have leaky injectors after just 5 year and only 3 of them i owned the car aka jb4. or do i have an afr issue. and how do i resolve it ? will post pics and i will try to take a data log tonight. please advise!
Attached Images
 


08 E90 335XI AWD
FBO Arm Motorsports KIT
ARM 5' FMIC
ARM 2' D.P
ARM CHARGE PIPE
ARM B.O.V
ARM DCI
JB4G5
MHD STAGE2+ BEF
NGK95770 GAPED@.022
ELDOR COILS
WALLNUT BLAST <500MILES
BMS CABIN AIR FILTER DELETE

Last edited by Ke93; 09-03-2020 at 10:05 AM..
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Ke93 Ke93 is offline
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Posts: 19
Join Date: May 2019
Car: 335xi
Default 09-03-2020, 09:45 AM

the only other bit id like to add is up until maybe 1k miles ago i had a lpfps that was not functioning so it was replaced and i am not sure how long the lpfps was off maybe 1k maybe more... so if that influences any ingenuity then great!


08 E90 335XI AWD
FBO Arm Motorsports KIT
ARM 5' FMIC
ARM 2' D.P
ARM CHARGE PIPE
ARM B.O.V
ARM DCI
JB4G5
MHD STAGE2+ BEF
NGK95770 GAPED@.022
ELDOR COILS
WALLNUT BLAST <500MILES
BMS CABIN AIR FILTER DELETE
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Ke93 Ke93 is offline
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Posts: 19
Join Date: May 2019
Car: 335xi
Default 09-03-2020, 11:30 AM

Any Takers , Is the thread awaiting a data log? what would the techs and forum members like to see additionally ?


08 E90 335XI AWD
FBO Arm Motorsports KIT
ARM 5' FMIC
ARM 2' D.P
ARM CHARGE PIPE
ARM B.O.V
ARM DCI
JB4G5
MHD STAGE2+ BEF
NGK95770 GAPED@.022
ELDOR COILS
WALLNUT BLAST <500MILES
BMS CABIN AIR FILTER DELETE
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Ke93 Ke93 is offline
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Posts: 19
Join Date: May 2019
Car: 335xi
Default 09-04-2020, 02:50 PM

Hey guys how do I get a response from the forum maybe the admins can help leaky injectors? Fuel treatment.Should I post a Data log ? Could it be the lpfps causing the condition prior to replacement.Lots of questions I have no answers to.


08 E90 335XI AWD
FBO Arm Motorsports KIT
ARM 5' FMIC
ARM 2' D.P
ARM CHARGE PIPE
ARM B.O.V
ARM DCI
JB4G5
MHD STAGE2+ BEF
NGK95770 GAPED@.022
ELDOR COILS
WALLNUT BLAST <500MILES
BMS CABIN AIR FILTER DELETE
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DeepEddy DeepEddy is offline
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Car: E92
Default 09-04-2020, 05:30 PM

U probably have to bite the bullet and buy new injectors, preferably from fcp euro for a lifetime guarantee. U can buy just three run then in either bank 1 or 2 and see if that condition improves. Or u can post a log like u planned on and others or I might be able to chime in better.
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jymmijamez jymmijamez is offline
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Car: 2009 BMW 135i
Default 09-10-2020, 03:50 PM

If your going into Map 4, open up the JB4 app and locate why you are getting thrown in Map 4. I can't remember exact location, but its on one of the screens. Also logs always help.


2009 Space Grey 135i 6MT - FBO Phoenix Intake PFS Stage 4 and PI w/ JB4 MHD BEF VTT GC Lites MFactory Limited Slip - Trebila Tuned -- 534hp 488tq (uncorrected for Mile High elevation)


Last edited by jymmijamez; 09-10-2020 at 03:51 PM.. Reason: adding more detail
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Ke93 Ke93 is offline
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Default 09-15-2020, 10:12 AM

Quote:
Originally Posted by jymmijamez
If your going into Map 4, open up the JB4 app and locate why you are getting thrown in Map 4. I can't remember exact location, but its on one of the screens. Also logs always help.
thank you for this i will locate how to do this, and i will also post a log. if anybody has any insight as to where i canfind why my jb4 keeps bumping to map4 id highly appreciate it! thanks for all your help


08 E90 335XI AWD
FBO Arm Motorsports KIT
ARM 5' FMIC
ARM 2' D.P
ARM CHARGE PIPE
ARM B.O.V
ARM DCI
JB4G5
MHD STAGE2+ BEF
NGK95770 GAPED@.022
ELDOR COILS
WALLNUT BLAST <500MILES
BMS CABIN AIR FILTER DELETE
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APDE90N54 APDE90N54 is offline
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Join Date: Jun 2018
Car: 335i e90 n54
Default 09-15-2020, 03:28 PM

This is a bit vague. Sure logs will see what the ecu is reading and the parameters.
What turbo set up do you have? I mean that looks like the begins of detonation, worst case. If you aren't getting enough fuel in that cylinder especially for the target boost then your igniting more air than fuel and that isn't good either. More information is needed here. No offense or to be taken out of context here. To many "modders" slap on stuff and their system is out of balance and just flash a tune add some fuel and gun it. Can you provide mre fueling set up info and boost monitoring setup?
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jymmijamez jymmijamez is offline
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Join Date: Mar 2017
Car: 2009 BMW 135i
Default 09-15-2020, 06:13 PM

Quote:
Originally Posted by Ke93
thank you for this i will locate how to do this, and i will also post a log. if anybody has any insight as to where i canfind why my jb4 keeps bumping to map4 id highly appreciate it! thanks for all your help
Open up JB4, click on the User Adjustment Tab and find Last Safety field there will be a number there, with a key just below. Not sure if the same on the Mobile but should be easy to find.

1. Boost over Safety
2. AFR Lean
3. Fuel Pressure Low
4. Meth Flow Log
5. Fuel Trim Variance


2009 Space Grey 135i 6MT - FBO Phoenix Intake PFS Stage 4 and PI w/ JB4 MHD BEF VTT GC Lites MFactory Limited Slip - Trebila Tuned -- 534hp 488tq (uncorrected for Mile High elevation)

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beamerbrad beamerbrad is offline
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Default 09-16-2020, 04:41 AM

Black plugs usually indicate oil being burnt possibly from a bad turbo or something or it’s running super rich or the injectors are leaking!
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