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martinisounds martinisounds is offline
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Join Date: Jun 2021
Car: 2017 X3 35i
Default F25 Boost under rarget - 06-06-2021, 12:48 AM

Hi all,

Started to do more logging and monitoring now that i have my JB4 installed and also just installed a VRSF charge pipe. While checking thru things, i see my target vs Boost are not close and i get an underboost warning (factory traction control error). Looking at the data logs i see the ecu psi is closer to the boost vs what the target is. Is this possibly a sign of a boost leak or is it a settings change that is needed? Just looking to see if there was any thoughts on this?

Thanks so much.
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