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foster430 foster430 is offline
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Default 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.

Last edited by foster430; 01-18-2022 at 07:15 PM..
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Steve @ BMS/Fuel-It!'s Avatar
Steve @ BMS/Fuel-It! Steve @ BMS/Fuel-It! is offline
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Default 01-18-2022, 11:59 AM

Please delete the picture of the log (too big) and upload the CSV file for assistance.



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foster430 foster430 is offline
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Default CSV file - 01-18-2022, 07:14 PM

Quote:
Originally Posted by Steve @ BMS/Fuel-It!
Please delete the picture of the log (too big) and upload the CSV file for assistance.

hope this is ok
Attached Files
File Type: csv map 0 & map 1 pull test.csv (68.7 KB, 40 views)
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Cannon @ BMS Cannon @ BMS is offline
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Default 01-19-2022, 11:45 AM

Map 1 appears to be making a little bit more power.


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Default 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.



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foster430 foster430 is offline
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Default Map 2 pull - 01-19-2022, 04:25 PM

91 fuel - 3rd gear 2k rpm to redline.
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File Type: csv Map 2 pull.csv (23.5 KB, 37 views)
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Cannon @ BMS Cannon @ BMS is offline
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Default 01-19-2022, 05:59 PM

Log looks good.


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foster430 foster430 is offline
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Default 01-19-2022, 06:40 PM

what map do you think is the max I should run?

I don't have a DP or chargepipe installed yet.
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VipinLJ VipinLJ is offline
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Default 01-19-2022, 06:41 PM

Quote:
Originally Posted by foster430
what map do you think is the max I should run?

I don't have a DP or chargepipe installed yet.
With only 93aki fuel and no other mods, I think map 2 would be the safest. I had to add E85 to run map 3 with zero timing issues.


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Default 01-20-2022, 11:34 AM

Quote:
Originally Posted by foster430
what map do you think is the max I should run?

I don't have a DP or chargepipe installed yet.
If you want to try Map 3, try adding in 3 gallons of E85 as well, then post a log.


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