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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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First Log N55 -
01-13-2022, 10:40 AM
Hello,
Just ran a log on my N55 135i. Happened to get a "Engine Malfunction" with 3 codes 2C90, 2C56, 2C58. I recently changed my wastegate solenoid because my boost was initially bouncing after full boost about 2-3 psi. This issue seems to be resolved, but seems like I still might have a boost leak issue?
Mods
-JB4 Map 5
-VRSF Chargepipe
-BMS FMIC
-BMS Intake
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-13-2022, 12:50 PM
Just changed a setting on my JB4 to stock flash 4-3. Here is another log. The boost codes did not pop up. Felt like it pulled alot harder too.  |
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Junior Member
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Posts: 178
Join Date: Aug 2014
Car: 2014 435i
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01-13-2022, 01:08 PM
What fuel?
2016 435i M-Sport EWG MPPK Manual 6, BMS Map 6 BEF-PS2-Race, Pure Stage 2 turbo, Spool-FX150 HPFP, Walbro 535 LPFP, BMS Intake, BMS FMIC, BMS BOV, 3.5 TMAP, ER DP, AA CP, FTP Turbo Inlet, H&R Sport Springs, BMW 335is clutch kit, BMS Clutch Stop, BMS Diff Bracket, BMS Wheel Spacers, BMW SSK, BMW Track Package
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-13-2022, 01:14 PM
Quote:
Originally Posted by RVA_N55_Fan
What fuel?
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93 Octane |
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Tuner
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Posts: 21,116
Join Date: Oct 2012
Car: 135i
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01-14-2022, 12:25 PM
Looks pretty normal but needs a few more adaption runs.
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-14-2022, 07:50 PM
Quote:
Originally Posted by Steve @ BMS/Fuel-It!
Looks pretty normal but needs a few more adaption runs.
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What are adaptation runs? |
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-14-2022, 07:53 PM
Just installed a non catted DP. Ran another 3rd log.
Still getting 2C90 boost under target /Boost Leak detected code. Should I opt for a boost leak test?
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Senior Member
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Posts: 573
Join Date: Sep 2021
Car: Evo VIII
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01-17-2022, 12:39 PM
Have you tried clearing codes yet to see if it goes away? A boost leak test never hurts, also, if you have a BEF make sure menu 4/2 is selected. If not, I would suggest using the BMS BEF.
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Tuner
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Posts: 21,116
Join Date: Oct 2012
Car: 135i
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01-17-2022, 02:05 PM
I'll 2nd the BEF. Other than your rail pressures being a bit wonky and trims maxed out forcing you lean (set FOL to 90) the log looks normal.
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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.
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Junior Member
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Posts: 178
Join Date: Aug 2014
Car: 2014 435i
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01-17-2022, 02:37 PM
Quote:
Originally Posted by Steve @ BMS/Fuel-It!
I'll 2nd the BEF. Other than your rail pressures being a bit wonky and trims maxed out forcing you lean (set FOL to 90) the log looks normal.
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Curious: why are his mph so low? |
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-18-2022, 04:38 AM
Quote:
Originally Posted by Cannon @ BMS
Have you tried clearing codes yet to see if it goes away? A boost leak test never hurts, also, if you have a BEF make sure menu 4/2 is selected. If not, I would suggest using the BMS BEF.
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I have tried clearing the codes. Still getting 2C90. I do not have a BEF. I believe I am set to 4/3 for that setting. |
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-18-2022, 04:40 AM
Quote:
Originally Posted by Steve @ BMS/Fuel-It!
I'll 2nd the BEF. Other than your rail pressures being a bit wonky and trims maxed out forcing you lean (set FOL to 90) the log looks normal.
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What is FOL and how do I set that "set FOL to 90"? |
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New Member
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Posts: 10
Join Date: Jan 2022
Car: N55 135i
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01-18-2022, 10:42 AM
Just ordered MHD and wifi adapter. I'll do a BEF and run and post again once I get the part.
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Tuner
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Posts: 21,116
Join Date: Oct 2012
Car: 135i
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01-18-2022, 11:53 AM
Fuel Open Loop
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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.
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