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(#1)
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B48 430i 2019 JB4 issues -
01-17-2022, 08:24 PM
Hi there
I recently got a jb4 and installed it onto my 430i. All the connections seem to be working - as my phone app is working correctly but when I switch maps I feel no difference in power. Ontop of this I did a drag with a friend of mine and pre installing my jb4 we basically were the same speed - but after I installed it I expected to be faster obviously - but there was no change, we were still matched. I don't know if I've done anything wrong or there's an issue with my JB4 - if anyone could help me out it would be greatly appreciated - thanks  Also - I did not plug in the EWG connector, but it says it is optional, so not sure if that could be the issue. Attached is a screenshot of a log I did. First few pulls were map 0, last few were map 1 As you can see in the image - there is an increase in boost2 and pre boost - but no increase in speed. 
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(#2)
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01-18-2022, 11:59 AM
Please delete the picture of the log (too big) and upload the CSV file for assistance.
 Click on our banner to visit our website! 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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(#4)
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01-19-2022, 11:45 AM
Map 1 appears to be making a little bit more power.
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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(#5)
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01-19-2022, 12:55 PM
Looks pretty normal and map 1 is definitely making more boost but there may have been some adaptions taking place. Lets see a log on map 2 next. Make sure you're running premium and if possible, splash in a couple gallons of E85 to a full tank of premium.
Click on our banner to visit our website! 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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(#7)
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01-19-2022, 05:59 PM
Log looks good.
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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(#9)
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01-19-2022, 06:41 PM
Quote:
2020 BMW 330i xDrive 2018 Audi SQ5 Prestige 2017 Audi A7 Prestige
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(#10)
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01-20-2022, 11:34 AM
Quote:
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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