[elitewildfire]

DME-BT seems to be unstable which is causes loss in boost in higher gears. I tried increasing the meth that I am pumping but it did

Anyone have an idea how I can stabilise it?

I haven't played around with PID gain and fuel bias that much, not sure if any of that will be useful in this case.

[turnsignalslol]

Sending a log to BMS or their forums would be your best bet. I had a JB4 on my 330i around a year back and I could never get it to run right, no matter what I did. Best bet would be a proper flash tune

[elitewildfire]

Originally Posted by turnsignalslol

Sending a log to BMS or their forums would be your best bet. I had a JB4 on my 330i around a year back and I could never get it to run right, no matter what I did. Best bet would be a proper flash tune

At this point, it is starting to look like a tune is the most feasible solution.

Can't say I relate on jb4 not working though. I managed to push the platform pretty hard. On my current g42 m240i, I managed to run 11s dead on 1/4 mile on jb4 without a flash. So the platform has been a great temporary tool as I wait for a public unlock solution that does not involve me sending my ECU to Femto.

[turnsignalslol]

Originally Posted by elitewildfire

At this point, it is starting to look like a tune is the most feasible solution.

Can't say I relate on jb4 not working though. I managed to push the platform pretty hard. On my current g42 m240i, I managed to run 11s dead on 1/4 mile on jb4 without a flash. So the platform has been a great temporary tool as I wait for a public unlock solution that does not involve me sending my ECU to Femto.

Sorry let me correct what I said. The JB4 worked in speeding the car up, but the logs always looked wonky and I could never find a way to smooth it out. An M340i owner with a JB4 also shared the same issues as me

We both only had access to 91 octane and E85 so that may be why? I saw logs from people with 93 octane and they seemed to have better results