E90Post
 


 
BMW 3-Series (E90 E92) Forum > BMW E90/E92/E93 3-series General Forums > General E90 Sedan / E91 Wagon / E92 Coupe / E93 Cabrio > Cobb data log and vacuum leak?



Reply
 
Thread Tools Search this Thread
      11-10-2012, 12:56 PM   #1
asado111
First Lieutenant
56
Rep
361
Posts

Drives: BMW M4
Join Date: May 2011
Location: TX

iTrader: (0)

Cobb data log and vacuum leak?

Is it possible to see if I have a vacuum leak with the Cobb tune? If I were to post my data log, can anyone help me to see if I have a possible vacuum leak? I will pay via paypal if anyone can help me.. thanks.
Appreciate 0
      11-10-2012, 02:03 PM   #2
cmyk
resident girl.
cmyk's Avatar
United_States
59
Rep
1,017
Posts

Drives: 2008 335i + 2014 X5
Join Date: Dec 2011
Location: DFW, Texas

iTrader: (1)

Garage List
2008 BMW 335i  [8.76]
You can log and monitor boost/vac with the AP. You should be able to easily see via the monitor if you are not hitting target boost/vacuum numbers.

If you had a vacuum leak you should have a code, though (and/or you would probably be able to hear a loud hissing sound at idle).

I had a very large vacuum leak in my E39 a couple years back. I heard it before I got a CEL. I used a mechanic's stethoscope to isolate the location. Turned out to be the rat's nest of vac lines under the intake manifold. In that case, the leak was so large that the car couldn't hold idle.
__________________


2008 E90 335i // Black Everything // photos
COBB tuned / QTP e-cutouts / Helix FMIC / cp-e DCI / AWE BOVs / Catless / FBO + F15 X5 xDrive35i
Appreciate 0
      11-10-2012, 02:27 PM   #3
asado111
First Lieutenant
56
Rep
361
Posts

Drives: BMW M4
Join Date: May 2011
Location: TX

iTrader: (0)

boost / vac aren't the same things right? How do I measure it using the Cobb? I'm sorry, pretty noob here.
Appreciate 0
Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off



All times are GMT -5. The time now is 01:07 PM.




e90post
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST