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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications JB4 Stage 2 N55 Problem
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      07-16-2015, 09:39 AM   #1
hsrashid5
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JB4 Stage 2 N55 Problem

I have a Dr.Euro downpipe with the JB4, but my check engine light comes on after i get it removed. its for the CAT, is their anyone that can fix that in the Tri-State? Can i fix it by getting into he system thru my laptop?
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      07-16-2015, 11:01 AM   #2
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Your engine light comes one after you remove the JB4? Thats normal.
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      07-16-2015, 11:10 AM   #3
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no its on even with the JB4 connected.
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      07-16-2015, 11:11 AM   #4
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i got the light reseted and it came back on again with in the next day. thats what i meant but taking it off.
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      07-17-2015, 12:32 AM   #5
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Quote:
Originally Posted by hsrashid5
i got the light reseted and it came back on again with in the next day. thats what i meant but taking it off.
Read the code and find what what cause the CEL.
JB4 itself should eliminate the CEL caused by aftermarket downpipe, but not on some other error message.
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      08-12-2015, 11:11 AM   #6
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Any Person In Tri-State That Does Tuning and Etc.?
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      08-14-2015, 02:50 PM   #7
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Quote:
Originally Posted by hsrashid5 View Post
Any Person In Tri-State That Does Tuning and Etc.?
Check out these guys out in Long Island:

https://www.facebook.com/*******?fref=ts

Did you read the code? Are you plugging your laptop to the JB4? It sounds like someone is reading the codes and reseting them for you, but you can do all of that yourself with the JB4 App on Windows or OS X.
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