[rominun]

Just got a 335i with a single turbo that i fixed up. car runs great but doesnt hit more than 5 psi. the wastegate springs are at 13 psi. No codes come up, other than O2 sensor and oil level sensor. Can the O2 cause this? im pretty sure the car should run at 13 psi if the solenoid isnt connected

[rominun]

heres a csv file.
https://drive.google.com/file/d/1rIH...w?usp=drivesdk

[nOshi]

If everything is working as it should, I would look at the tune. If your flash only will need boostbox and if jb4 should have the correct firmware loaded. If not running either would explain not hitting target.

[rominun]

Originally Posted by nOshi

If everything is working as it should, I would look at the tune. If your flash only will need boostbox and if jb4 should have the correct firmware loaded. If not running either would explain not hitting target.

im running jb4 single turbo firmware 135 and mhd backend flash with single turbo flash

[nOshi]

Originally Posted by rominun

im running jb4 single turbo firmware 135 and mhd backend flash with single turbo flash

Hopefully you got this sorted already. But upload a log so can see the full picture. Could be a boost leak or hardware.

[rominun]

Originally Posted by nOshi

Hopefully you got this sorted already. But upload a log so can see the full picture. Could be a boost leak or hardware.

ended up being a boost leak. still doesnt hit target boost. hits 17 psi out of 23 right now. i ordered a boost leak tester and going to try to figure out the new issue