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      05-25-2019, 12:53 PM   #1
First Lieutenant

Drives: BMW X1 xDrive35i
Join Date: Apr 2014
Location: United States

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non-ISO JB4 firmware anyone?

Does anyone have the non-ISO firmware backed up? I am sick of all the check engine lights that many are getting and that Burger Tuning doesn't seem to have the answer for... 3166, now 28A0. I'm running the latest ISO firmware and the car is error free in Map 0. I long for the days before I clipped the diode and went ISO... tuner codes were cleared, driving carefree.
X1 35i, H&R springs, Bilstein HD shocks, BMS JB4, BMS chargepipe, xHP trans flash
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      05-27-2019, 09:12 AM   #2
Private First Class

Drives: 2015 X1 X35i M-SPORT
Join Date: Jun 2018
Location: Seattle, Wa

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I donít have an answer but the check engine lights are the main reason I have not bought the JB4. If they fixed this, Iíd get one.

2015 BMW X1 35i MSport // BMS Intake
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      07-11-2019, 01:02 PM   #3

Drives: e84 n55
Join Date: Jun 2019
Location: WV

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Yeah they are annoying but if you have the mobile app itís real easy to make them disappear.

I just installed the jb4 on my 60k N55 and blew the charge pipe in 5 min. VRSF upgrade fixed that in a jiff, still donít like that c-clamp (which was hanging on my ground wire above the floor pan). Sheís been running fine now, other than the codes and traction control through first and 2nd. (They have a fix for that just havenít gotten around to it yet)
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