[m2michael23]

Hi everybody, on the last weekend, i installed supersprint down, ER charge pipe and jb4 on my 335i. i had afe intake and meistershaft gt exhaust.

however, my car isn't boosting. i attached my graph.
also, after my car sits for over 3 hrs or longer, drivetrain malfunction appears with WOT on first attempt. after it disappeared, there isn't any more sign pops up.

what do you guys suggest?
i feel somewhere is leaking cause the turbo isn't boosting.
should i go to any modification shop to seek help?

these codes show up on my DME reading in jb4 interface
138104 No Description Found
122108 BOV plausibility -- Ignore, tuner code
1208AF No Description Found

[dwatspdx]

Its probaby your electronic boost solenoid

[m2michael23]

THank for your input bud. This issue has been solved. It was my aftermarket chargepipe. it has a unidentify leak. Now my car runs smooth and fast with all the parts i put on.