[Malaka1]

So I have been getting the P30FF code I took my car to a local BMW performance shop and they found a vacuum line leak.. Ok so after that the boost came back. But now when I do long 3rd gear pulls it will trigger the P30FF code, I clear the code and hit it but it is like the car is still in safety mode? I have to turn off the engine and turn it back on and then it goes back to normal of course until I do a long 3rd or 4th gear pull. I have attached 2 datalogs below both of which I believe show the car throwing the code mid pull.
Just .csv files could use some help making it look like a datalog come on Cobb get your own datalog viewing software!

[e46m3to335i]

Maybe a boost solenoid needs replaced?

-Nick

[Jeff@TopGearSolutions]

Logs won't help us. You need to find the new boost leak.

[VNeBLOB42]

I've gotten the P30ff code under heavy load post shift when S1+ was freshly flashed. After adaption, went away. Check you vacuum lines and CP o ring and FMIC connections.

Search for Virtual Dyno, that'll read your csv files.

[Malaka1]

Originally Posted by VNeBLOB42

I've gotten the P30ff code under heavy load post shift when S1+ was freshly flashed. After adaption, went away. Check you vacuum lines and CP o ring and FMIC connections.

Search for Virtual Dyno, that'll read your csv files.

It is well adapted by now over a month.

I will take it to check for another boost leak, smoke test and hope I find some thing that would be the easiest solution really.

Maybe wastegates are sticking?

[Malaka1]

Virtual Dyno I downloaded it but how does it read the .csv files? I open them in virtual dyno and nothing...

[marv85]

1)post turbo boost leak
2)DVs
3)Boost control: vacuum lines from canister to engine, canister to solenoids, solenoids to WG
4)boost solenoid (that was my problem)

if all above don;t solve it then it's your WG actuators

[Malaka1]

Originally Posted by Malaka1

Virtual Dyno I downloaded it but how does it read the .csv files? I open them in virtual dyno and nothing...

Nvm I got it

[VNeBLOB42]

Originally Posted by Malaka1

Nvm I got it

It's a bit glitchy sometimes you just got to do the right steps

[gtaccord]

Check your dvs and charge pipe first. Most leaks seem to be around there. Then check the vacuum lines that go to the boost control solenoids. A tiny leak will cause the problem you are having. I had the same issue and it took me quite a while to find. Buying a mightyvac to troubleshooting with would probably be a good idea.

[Chicks-Love-Bimmers]

Same thing happening to me I replaced both boost solenoids but my car is still getting the code. I'm pretty convinced its the wastegate actuator which is going to be a pain to replace since I'm FBO and I don't think the dealership will replace it