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2011_550i_TX 2011_550i_TX is offline
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Car: BMW 550i RWD
Default Boost Bank1 and Bank2 Variance Strange Problem - 06-24-2020, 12:42 PM

I have a 2011 550i. JB4 MAP1, In my logs I monitor the reading from Boost and Boost2. Boost2 is always about 2 to 3 pounds less than Boosts' Reading.

Am I correct that Boost reads Bank1 (passenger side)?
and Boost2 reads Bank2 (drivers side)?

I started looking at where there may be boost leaks. On the drivers side (bank2) I noticed the diverter valve was cracked badly so I replaced it. Now Im seeing Boost(Passenger side) read even higher than Boost2. Like 5 to 6 pounds difference. I expected the lower readings I was getting on boost2 gauge would increase, but they didn't. Boost increased considerably on passenger side readings where I did no work.

Any thoughts?
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