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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications Everyone on N63 JB4 Beta - Please grab a map 4 log for me
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      01-01-2017, 06:34 PM   #1
MattPro
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Everyone on N63 JB4 Beta - Please grab a map 4 log for me

Hi guys,

I'm trying to collect some map 4 logs from other cars to see why my car is targeting such low boost.

Essentially, my car in map 4 (JB4 in logging only mode) used to target 10psi. Now, it is targeting 7psi. Terry @ BMS mentioned that the normal range for the N63 is 7-10psi but I've never had it keep it this low before. I want to see if there is a clear correlation between IAT/boost level (I'm currently in below freezing temps and was at average summer temps before).

Thanks,
Matt
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