N54Tech.com - International Turbo Racing Discussion
phoebee phoebee is offline
Junior Member
Posts: 35
Join Date: Aug 2017
Car: 428i
Thumbs up How to check knock on jb4 mobile?? - 08-25-2017, 11:08 PM

F32 N20 jb4 ewg 2014+
I using bluetooth jb4 mobile.

Q1. How to know knock on jb4mobile while driving?

Q2. Can I change maps with driving on jb4mobile?

Q3. Is there anybody use map2 with stock car?

Thank you very much.!!

Last edited by phoebee; 08-26-2017 at 04:18 AM..
Reply With Quote
Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
Posts: 26,138
Join Date: Jan 2008
Default 08-26-2017, 08:39 AM

1) You'd want to look at ignition timing and check for repeated 3 degree drops. There is a how to read logs thread here if you need additional advice on that: http://www.n54tech.com/forums/showthread.php?t=21269

2) Just double tap the map gauge on the front, or select change map from user adjustment.

3) On higher octane some have gotten away with it.

Burger Motorsports
Home of the Worlds fastest N20s, N54s, N55s, S55s, N63s, and S63s!

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.
Reply With Quote
phoebee phoebee is offline
Junior Member
Posts: 35
Join Date: Aug 2017
Car: 428i
Default I have one more question - 08-28-2017, 04:18 PM

thank you so much for answer.

I have one more question.

There is no matching actual gear and gear on jb4mobile.

Why does this happen?

Is there solution? )))
Reply With Quote

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

vBulletin Skin developed by: vBStyles.com
Copyright 2007 - 2018, N54tech.com