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ToroBravo33 ToroBravo33 is offline
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Car: BMW 340ix
Default Not sure JB4 is working - 12-26-2018, 05:46 PM

Recently installed a JB4 on my 2018 340ix. I do not feel any difference in power. I have tried maps 1,2, and 5 but they all feel the same as stock. I updated the firmware as soon as I got the unit. I set the boost to hijack the fuel gauge and have not seen boost go above ~9psi.

If someone could PLEASE take a look at my log and tell me what is wrong I would seriously appreciate it. Could it be something in my settings?

Thank you
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Terry @ BMS's Avatar
Terry @ BMS Terry @ BMS is offline
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Default 12-26-2018, 06:07 PM

Set 2nd gear boost limiter to 0, you have it set to 5psi.

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