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cdmorenot cdmorenot is offline
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Posts: 6
Join Date: Jun 2019
Car: F30 335 in USA & MK7 TSI in COL
Default 06-26-2019, 11:13 PM

Originally Posted by mdelreal
Yes, that is the issue. Your unit doesn't get power before the ECU does its self checks and detects an open loop on the sensors that the JB4 attaches to. What I did to remedy this while a new board design was being worked on was to have the usb data cable always attached to a phone or tablet before turning the engine on.

In my case it helped that my headunit is basically an android tablet so I had the usb data cable connected directly to it, that stereo has a battery so the usb port that the jb4 data cable is connected to always has power running to it so it doesn't matter if the car is turned off, once the checks start when you open the ignition circuit your jb4 is already "awake".

I just re-read your first post and it seems that you are using a bluetooth connection so that might prevent you from using my workaround, unless you can source a data cable locally.

To me that works fine as I got a little impatient about the board update but I can see that it's not ideal.
Clever! Makes a lot of sense. Unfortunately for me finding a data cable locally is a no go. As such, I guess Iíll have to wait for the fix to be released. George has been responsive.

Do you also have a 6 Speed ? Where are you located ? I was told it was a known issue in Mexico. Iím in Colombia. Are you happy running Stage 1?

Thank you again for being kind and sharing your fix.
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