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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > N54 single turbo jb4 goes to map 1 after i shift



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      03-31-2025, 11:02 PM   #1
ruslant
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N54 single turbo jb4 goes to map 1 after i shift

About my car its 2009 e60 535xi
Mods
Index 11
Precision racework coils
Front facing manifold from ebay
3.5tmap sensor
Single turbo kit from jackfab
7.5 intercooler
Precision racework fuel pump 2.5
Full e85
Jb4
Mhd

The car drives well on the first map and on the second, but if I turn on the 3rd map 20psi, then the map when changing gear resets to the first one. I don't know what the problem is. Can someone help?

here is my log
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      04-01-2025, 08:37 AM   #2
oVeRdOsE.
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JB4 tells you why it goes in safe mode, check the reason .
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      04-01-2025, 01:31 PM   #3
ruslant
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But how and where?
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      04-01-2025, 05:04 PM   #4
oVeRdOsE.
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Quote:
Originally Posted by ruslant View Post
But how and where?
which version you use, the one with the app or the laptop. ?

- in the old app version it was at the end of the ''user adjustment'' '' last safety''
- in the new app usre adjustment > info '' last safety''
- in the laptop, screen at the right ''last safety''

1- Boost over safety
2- AFR lean
3- Fuel Pressure Low
4- Meth flow low
5- fuel trim variance
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      04-01-2025, 05:40 PM   #5
ruslant
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Thanks
Afr is lean
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