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      03-14-2023, 07:44 AM   #2
mvie
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Drives: E46 m3;F10 m5;F85 x5m
Join Date: Aug 2018
Location: new york, ny

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Sorry I dont have a solution but a suggestion would be to focus on getting your BM3 OTS Stage 2 figured out before adding the JB4.

Stage 2 should be closer to 22psi as far as I’ve seen on BM3 maps. If you’re only seeing 17 perhaps you have a boost leak? I know it seems odd given you’ve seen the 22psi when using the jb4 prior to adding backend flash. Can you try a different OTS Stage 2 map and see what the boost is (again, don’t turn the jb4 on until you figure out how to get the OTS map hitting it’s expected targets).

Did you flip the bit on JB4 for backend flash?

On my car I’m running a DME Stage 2 flash, with a JB4 on Map 6 for meth control (not using it for extra boost at this point). I consistently hit ~22-23psi (with and without the jb4 on).
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