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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > JB4 Economy mode Problem



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      08-24-2015, 01:35 PM   #1
rekcebeloc
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JB4 Economy mode Problem

Hi

Not sure if i should be posting here but i need some help. Recently, due to my heavy foot after acquiring my Jb4, i have been switching it to map 8. When i try to switch out to map 5 or map 2 while driving, it'll throw codes and the won't feel powerful at all. Even if i put it back to the stock map, i feel a major power loss. The only way for me to change it is to have to change it to the stock map, shut off the car, and let it sit until the computer shuts off. Anyone have any advice?

Thanks
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      08-24-2015, 05:42 PM   #2
Johnny Boost
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Quote:
Originally Posted by rekcebeloc View Post
Hi

Not sure if i should be posting here but i need some help. Recently, due to my heavy foot after acquiring my Jb4, i have been switching it to map 8. When i try to switch out to map 5 or map 2 while driving, it'll throw codes and the won't feel powerful at all. Even if i put it back to the stock map, i feel a major power loss. The only way for me to change it is to have to change it to the stock map, shut off the car, and let it sit until the computer shuts off. Anyone have any advice?

Thanks
I think this is normal. From what I've read, the car needs to be restarted after using map 8. Otherwise you'll get that reduced power warning.
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      08-24-2015, 07:30 PM   #3
weehe126
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Quote:
Originally Posted by Johnny Boost View Post
I think this is normal. From what I've read, the car needs to be restarted after using map 8. Otherwise you'll get that reduced power warning.
+1
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      08-24-2015, 09:42 PM   #4
deemarr 335i
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Quote:
Originally Posted by Johnny Boost View Post
I think this is normal. From what I've read, the car needs to be restarted after using map 8. Otherwise you'll get that reduced power warning.
+2
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      08-24-2015, 10:21 PM   #5
rekcebeloc
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hmm i guess that sounds right. thanks everyone
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