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Posts: 6,233
Join Date: Oct 2013
Car: e90 335i
Default 08-21-2018, 02:09 PM

Originally Posted by DJTones
Hi All. Iím new to the forum and new to tuning. I just had the JB4 installed on my 2018 M550i. After more than 1hr of trying to get the firmware installed (while the car was still on the dyno), I finally got it going, however I am having some Mobile App issues which I will get to in a moment. Mustang Dyno shows a nice improvement of 50hp and 50 torque using Map1 and a better sounding exhaust with valves open. I had thought it would a lot louder but maybe I still need to tweak some app settings

As far as the app goes, something is definitely off. First off, the dyno didnít even like Map2 so we just ran specs on Map 1. With Map 1 connected, only Boost and Map gauges seem to work. All other gauges have 0 across the board with no movement. Any help would be greatly appreciated.

Make sure your obd is plugged to the molex correctly.

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