[Godzilx]

I'm driving an 07 335i and I took off my exhaust to have cutouts welded in and decided to drive around. Driving at first went perfectly and sounded great but soon randomly the turbos stopped giving me boost whatsoever. There was a code thrown about not enough back pressure (30FF) but after putting the exhaust back on, the turbos still won't kick in. Any ideas as to what's wrong?

[turbohugh]

Originally Posted by Godzilx

I'm driving an 07 335i and I took off my exhaust to have cutouts welded in and decided to drive around. Driving at first went perfectly and sounded great but soon randomly the turbos stopped giving me boost whatsoever. There was a code thrown about not enough back pressure (30FF) but after putting the exhaust back on, the turbos still won't kick in. Any ideas as to what's wrong?

Did you check to see if you blew off a hose or vacuum line ?
I don't think that's what 30FF means but I've never seen that code on my car. I thought it meant boost LEAK . A ruptured charge pipe could do that , or vacuum line

[Godzilx]

Originally Posted by turbohugh

Did you check to see if you blew off a hose or vacuum line ?
I don't think that's what 30FF means but I've never seen that code on my car. I thought it meant boost LEAK . A ruptured charge pipe could do that , or vacuum line

Charge pipe disconnected! Huge relief

[turbohugh]

Originally Posted by Godzilx

Charge pipe disconnected! Huge relief

Ya first thing to check if you get the 30FF is boost leak .

Maybe get a new O-ring for the charge pipe and make sure the clip is fully seated

[turbohugh]

Originally Posted by Godzilx

Charge pipe disconnected! Huge relief

Ya first thing to check if you get the 30FF is boost leak .

Maybe get a new O-ring for the charge pipe and make sure the clip is fully seated

[iqraceworks]

I had the same 30FF code....low boost. Turned out to be that one of the connections to the intercooler was lose. Go through everything, check it out. Look at vacuum lines, check your wastegates, etc, etc....