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unknownz24 unknownz24 is offline
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Car: 2008 335xi
Default Lean Condition? Trim Pegged out? - 05-11-2020, 02:53 PM

Hi team,

Been recently getting booted into Safety Map 4 due to lean AFR. Thought maybe the O2 sensors were getting fowled since I was getting "2C7B Lamba probe behind converter 2, signal"

Have replaced the bank 1 and 2 post O2s, still getting booted to Map 4 for lean AFR

Looks like my Trim is pegging out at 50. Thoughts?

Running BEF for Hybrid Turbos, Map 1
91 Octane
Upgraded IC and DP
Fuel It Stage 2 Bucketless

Recent data log attached. Booted to Map 4 just after this pull.

Thanks for the help!
Attached Files
File Type: csv 20200510_1759_runs(3).csv (32.7 KB, 59 views)
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Car: E92 335XI
Default 05-11-2020, 10:29 PM

There isn’t a pump flash for hybrid Turbos - so you are likely using the wrong flash.

If just using 91- load the PUMP Stock turbo flash.

Log map 1- see if that helps trims / AFR


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. 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. Please click here for more information on legal requirements related to use of BMS parts.
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unknownz24 unknownz24 is offline
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Default 05-11-2020, 10:40 PM

Right, my bad. I've been running map 1 and haven't been logging for a while so I've forgotten a few names etc

Last BEF was Pump. I haven't changed any settings since then, everything was running great, was even getting good results with Map 6 and 7 per your guidance. Then recently I've been getting Safety 2 in map 1.

As I said, thought it was the O2 sensor based on the code, but after putting in new ones and resetting the adaptations, I'm still getting Safety 2.

I'll double check my settings and BEF, but as far as I know I haven't changed anything
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Dave @ BMS/Fuel-It!'s Avatar
Dave @ BMS/Fuel-It! Dave @ BMS/Fuel-It! is offline
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Default 05-11-2020, 10:44 PM

Quote:
Originally Posted by unknownz24
Right, my bad. I've been running map 1 and haven't been logging for a while so I've forgotten a few names etc

Last BEF was Pump. I haven't changed any settings since then, everything was running great, was even getting good results with Map 6 and 7 per your guidance. Then recently I've been getting Safety 2 in map 1.

As I said, thought it was the O2 sensor based on the code, but after putting in new ones and resetting the adaptations, I'm still getting Safety 2.

I'll double check my settings and BEF, but as far as I know I haven't changed anything
Did you replace your primaries or secondary?

Id do an o2 reset see if that brings the AFR back to normal at least temporarily- if they start to get wonky after the reset (or nothing changes)- youll know the primary bank 1/2 would need replacing


Burger Motorsports
Home of the JB4 the worlds most popular turbocharged tuning system!

It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. 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. Please click here for more information on legal requirements related to use of BMS parts.
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