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djmoore05 djmoore05 is offline
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Default JB4 Log Review - Wacky AFR's - 09-11-2019, 02:21 PM

Hi Everyone!

I'm new to the JB4 community, and have recently installed it on my 2013 BMW 335i x-drive. I have upgraded the IC and hoses, **'s, charge pipe, coils and plugs.
I made sure I had no CEL before posting this, but my logs show real crazy AFR's and I'm not hitting anywhere near target boost so I figure I'd ask and see if anyone can help. Thanks!
Attached Files
File Type: csv 2019-09-10 14_09_49_Map-5.csv (100.6 KB, 19 views)
File Type: csv 2019-09-11 13_37_10_Map-5.csv (98.7 KB, 14 views)
File Type: csv 2019-09-11 13_41_40_Map-5.csv (69.4 KB, 13 views)
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Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 09-15-2019, 10:13 PM

WGDC looks maxed out...

Did you recently jist install all those parts?



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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djmoore05 djmoore05 is offline
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Default 09-15-2019, 10:32 PM

I've installed all the parts in the last week or so, yes. I've been emailing Ando and he said there's probably a boost leak so I'm going to try and test that tomorrow. Does that sound right?
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Default 09-16-2019, 12:52 PM

Based on WGDC being maxed & the proximity of the new part install- yes, I'd say it's safe to assume there is a leak somwhere. Not uncommon especially w. newly installed parts.



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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djmoore05 djmoore05 is offline
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Default 09-16-2019, 01:29 PM

Ok, thanks. I'll hopefully be able to post an update in the next few days.
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Default 09-16-2019, 11:49 PM

Quote:
Originally Posted by djmoore05
Ok, thanks. I'll hopefully be able to post an update in the next few days.



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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djmoore05 djmoore05 is offline
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Default 09-20-2019, 08:50 PM

Ok! After much trial and error I believe I found the leak. Actually on the hot side into the intercooler. I may need to replace the full pipe, but I think it's stopped leaking for now. Here's a couple logs, can someone let me know how they look?? Thanks!
Attached Files
File Type: csv 2019-09-20 21_22_17_Map-5.csv (69.1 KB, 11 views)
File Type: csv 2019-09-20 21_25_20_Map-5.csv (59.1 KB, 10 views)
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Default 09-23-2019, 02:15 PM

They look a little better, but WGDC is still nearly maxed- I'd assume that FF eventually will learn back up to 150- replace pipe



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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djmoore05 djmoore05 is offline
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Default 09-23-2019, 02:41 PM

Ok, I'll order a new pipe and see how that goes!
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Default 09-25-2019, 11:43 AM

Quote:
Originally Posted by djmoore05
Ok, I'll order a new pipe and see how that goes!



http://www.fuel-it.biz/

e92 AT 335xi 2.0
Doc Race Kit 6062
Fuel-It!Platinum DIY PI Kit + Stage 2BL
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djmoore05 djmoore05 is offline
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Default 10-02-2019, 07:02 PM

Ok, installed new TIC Charge Pipe. I think it helped. These logs should be in chronological order. All within about 20 minutes. I think they look better, although I noticed less boost from each consecutive pull. Looks like it was hitting targets but the targets were lowering over time. Just adjusting to the circumstances?? Does anything else look off? thanks!
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djmoore05 djmoore05 is offline
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Default 10-02-2019, 07:03 PM

oops... here are the logs
Attached Files
File Type: csv 2019-10-02 18_42_28_Map-5.csv (19.0 KB, 8 views)
File Type: csv 2019-10-02 18_43_04_Map-5.csv (13.8 KB, 6 views)
File Type: csv 2019-10-02 18_45_26_Map-5.csv (20.2 KB, 8 views)
File Type: csv 2019-10-02 18_46_01_Map-5.csv (15.6 KB, 6 views)
File Type: csv 2019-10-02 18_47_26_Map-5.csv (18.7 KB, 6 views)
File Type: csv 2019-10-02 18_49_39_Map-5.csv (21.2 KB, 6 views)
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Default 10-03-2019, 06:48 AM

Logs look a lot better. FF had to learn down from when the car couldn't hit full boost. It looks like you would benefit from some duty bias tuning to get closer to target up top, but it's up to you if that's worth doing.

What fuel are you running, 93? You could push more boost and timing with a couple gallons of e85 mixed in.
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Default 10-03-2019, 03:37 PM

Cool, thanks! Actually its only running 91, that's as high as most pumps get in Denver (hooray altitude)! But I have access to e85 so I was thinking about a mix of some kind. Any recommendations on that and adjusting duty bias? Oh, and I'm trying to catch up on all the acronyms, I know FF has to do with fuel but what does it exactly stand for?
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Default 10-04-2019, 07:01 AM

Quote:
Originally Posted by djmoore05
Cool, thanks! Actually its only running 91, that's as high as most pumps get in Denver (hooray altitude)! But I have access to e85 so I was thinking about a mix of some kind. Any recommendations on that and adjusting duty bias? Oh, and I'm trying to catch up on all the acronyms, I know FF has to do with fuel but what does it exactly stand for?
You would definitely benefit from some E85. I have the exact same car and run E40. I'd start lower than that with something like e20-30 and make sure to have the logs reviewed here before increasing the mixture.

BMS should be able to help on duty bias tuning. I am also fairly new to this, so I don't feel comfortable doing custom duty bias tuning on someone else's car.

FF is feed forward. I like this resource for learning about log parameters.
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Default 10-04-2019, 09:36 AM

Awesome, I appreciate the help!
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