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Bruceflorida Bruceflorida is offline
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Default New guy log review - 09-15-2020, 11:11 AM

Hey guys, had a JB4 for awhile now and finally starting to log stuff to make sure itís running properly. Lately it has been feeling a bit sluggish and occasionally switches to map 4 on its own, any idea why?

2015 m235i, charge pipe, ********, running map 2
49k miles

This was a pull in 3rd gear, please let me know if I can do a better lot or anything to help. Thanks!
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File Type: csv Log 1.csv (8.8 KB, 25 views)
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Bruceflorida Bruceflorida is offline
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Default 09-16-2020, 03:00 PM

2nd log from earlier, made a couple changes, any input?
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File Type: csv Log 2.csv (10.8 KB, 23 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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Default 09-17-2020, 06:44 PM

What fuel?


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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Bruceflorida Bruceflorida is offline
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Default 09-17-2020, 07:15 PM

93 pump, it just recently started kicking me into map 4, never had that issue before
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Default 09-22-2020, 01:53 PM

What safety are you throwing for the Map 4 switch?

It should be stored on your log under last safety.


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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Bruceflorida Bruceflorida is offline
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Default 09-22-2020, 01:57 PM

It shows code 2 AFR lean
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Bruceflorida Bruceflorida is offline
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Default 10-19-2020, 02:30 PM

Okay it’s been a few weeks, any input from anyone? The car hasn’t kicked into map 4 in awhile now but I’m curious how my logs look etc
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