[jyjimenez3]

So i keep getting this code 0030ff plus half engine any time i full throttle it . I also getting like a weird noise which is in the video. I check most of the boost lines but its hard to see where their is a crack. I have an 07 335i 123k miles . Thanks

[BashShah]

You know I was in your exact situation and It took me 2 weeks to finally say F it.
I am going to replace all the Vacuum lines whether they are good or bad.

jyjimenez3, you car is 11 Years OLD.
Plastic will deteriorate.

When I replaced my lines, I still could not see or hear a leak.
UNTIL I was measuring my New High Temp Silicone lines with the old line next to it and tracing it.
Then I felt a Cavity in the line under the Cloth Lining.
it was as if the line was chewed by mice from the INSIDE of the line.

This link is the cheapest and VERY Good Quality silicone lines out there:
https://www.verociousmotorsports.com...ld-by-the-Foot

you will need the 3.5mm and about 15 feet.
I put red in, I like the Look.

Also, there are 2 Plastic Lines on top of the Engine, DO NOT Replace them with Silicone lines.
I started smelling Burning smell in the Cabin.

Replacing the Front turbo Vacuum line is PITA.
but I came up with an easy way and the second time it took me 3 min to do the Front turbo vacuum line.
replace all lines on both side of the engine.
razor blade to cut and twist the old stuff off.

check this link:
https://www.e90post.com/forums/showthread.php?t=1440745

good luck.
PS: in your video the weird sound is a complete sign that there is a major leak.
on a positive side, once I replaced my Vacuum line, I got less Rattle, and a lot less Lag.

[jyjimenez3]

Originally Posted by BashShah

You know I was in your exact situation and It took me 2 weeks to finally say F it.
I am going to replace all the Vacuum lines whether they are good or bad.

jyjimenez3, you car is 11 Years OLD.
Plastic will deteriorate.

When I replaced my lines, I still could not see or hear a leak.
UNTIL I was measuring my New High Temp Silicone lines with the old line next to it and tracing it.
Then I felt a Cavity in the line under the Cloth Lining.
it was as if the line was chewed by mice from the INSIDE of the line.

This link is the cheapest and VERY Good Quality silicone lines out there:
https://www.verociousmotorsports.com...ld-by-the-Foot

you will need the 3.5mm and about 15 feet.
I put red in, I like the Look.

Also, there are 2 Plastic Lines on top of the Engine, DO NOT Replace them with Silicone lines.
I started smelling Burning smell in the Cabin.

Replacing the Front turbo Vacuum line is PITA.
but I came up with an easy way and the second time it took me 3 min to do the Front turbo vacuum line.
replace all lines on both side of the engine.
razor blade to cut and twist the old stuff off.

check this link:
https://www.e90post.com/forums/showthread.php?t=1440745

good luck.
PS: in your video the weird sound is a complete sign that there is a major leak.
on a positive side, once I replaced my Vacuum line, I got less Rattle, and a lot less Lag.

So you dont think it the turbo .. im a bit scared it is . i think mine sounds different from the turbo siren thats all over youtube .

[BashShah]

It could be anything, but most likely, it is a vacuum line some where that has got a big leak.

30ff is your biggest clue.
From your video, I had the same sound.
I could not see any leaks either till I just said.... $20 in parts.
1 hour labour, or 1.5 hours.
And very easy to do.

When replacing, replace 1 section at a time.
Just do it, then you know it wasn't the lines.

[jyjimenez3]

Originally Posted by BashShah

It could be anything, but most likely, it is a vacuum line some where that has got a big leak.

30ff is your biggest clue.
From your video, I had the same sound.
I could not see any leaks either till I just said.... $20 in parts.
1 hour labour, or 1.5 hours.
And very easy to do.

When replacing, replace 1 section at a time.
Just do it, then you know it wasn't the lines.

Ordered them they should be here this Thursday ill let you know the outcome. Thanks!!

[jyjimenez3]

ok so i replaced all the vacuum lines and i still have the same problem , but its a different sound now. taking off my downpipes tomorrow to see the rear inlet .

[BashShah]

Originally Posted by jyjimenez3

ok so i replaced all the vacuum lines and i still have the same problem , but its a different sound now. taking off my downpipes tomorrow to see the rear inlet .

ohhh you are modded and you are still getting the code after vac line replacement.

1) your Vac canisters, somehow bypass them. it's comon that the nipples on the Vac canisters break off. (it's a point of Failure.)

2) if you are messing with your DPs, then you know that dept more than me.

what kind of other sound?

[jyjimenez3]

ok i i red did all the vacuum lines, re plugged my rear turbo inlet(had to remove my downpipes, and swapped the cheap ebay vanos solenoid with the original ones and the noise went away !!! but i took about like 4 full WOT pulls and after the 4th i go the 30ff and now the 002C7C. i can hear the turbos everytime i down shift but i am getting no boost now. i will be testing the boost solenoids this weekend.

ps i did remove my downpipes and unplugged the censors too

[BashShah]

Originally Posted by jyjimenez3

ok i i red did all the vacuum lines, re plugged my rear turbo inlet(had to remove my downpipes, and swapped the cheap ebay vanos solenoid with the original ones and the noise went away !!! but i took about like 4 full WOT pulls and after the 4th i go the 30ff and now the 002C7C. i can hear the turbos everytime i down shift but i am getting no boost now. i will be testing the boost solenoids this weekend.

ps i did remove my downpipes and unplugged the censors too

As you stand in front of your car, Look at the Right side Vacuum lines also.
ALWAYS use OEM Brand Parts in this car, these cars are too touchy.

If you got 4 WOTS and then you got 30ff and 2c7c.
2C7C is Post O2 Sensors. or AFR Sensors.

Catless Downpipes are known to cause this.
also, I really think sine you took your DPs off to do the Vacuum lines, I think that is where your Problem is.

[jyjimenez3]

Originally Posted by BashShah

As you stand in front of your car, Look at the Right side Vacuum lines also.
ALWAYS use OEM Brand Parts in this car, these cars are too touchy.

If you got 4 WOTS and then you got 30ff and 2c7c.
2C7C is Post O2 Sensors. or AFR Sensors.

Catless Downpipes are known to cause this.
also, I really think sine you took your DPs off to do the Vacuum lines, I think that is where your Problem is.

ok so upon removing the downpipes i saw my rear turbo covered in what it looks like is oil. the turbine barley spins !! the front one spins perfectly but the rear one barley spins which is prob due to the oil ?

[BashShah]

http://www.e90post.com/forums/showthread.php?t=772771