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Old 06-28-2013, 10:04 PM   #1
Robman7835
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Member#: 105862
Join Date: Jan 2006
Chapter/Region: MAIC
Location: Pa
Vehicle:
2006 STi
WRB

Default 06 STi - Cobb Stage 2 - Power Issues - Data Logs Inside

I've just recently installed a cobb ots stage 2 tune on my 06 STi, and I'm having some issues in the power curve around the 3500-4500 rpm range. It seems to hiccup or cut out very briefly then continues to pull. Sometimes its a simple quick studder, sometimes it seems like 2 or 3.

No CELS. Cleaned the MAF. Looking for some other ideas of where to look. My first few logs showed boost spikes over 20psi, so I attributed it to creep, so I switched maps to the LWG stage 2 tune. But the problem still exists.


I've included some datalogs of 2 4th gear pulls. Hopefully they are viewable.

2006 Sti - Mods Include

Invidia Catted Downpipe and Invidia Catback system
Snokus Delete
APv2 - Cobb OTS 93 Stage 2 LWG

https://dl.dropboxusercontent.com/u/...7/datalog7.csv
https://dl.dropboxusercontent.com/u/...7/datalog8.csv

Thanks for any Help
Rob
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Old 06-29-2013, 04:23 AM   #2
jebjkey
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2005 STi
2006 Evolution MR

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The logs are visible, just not really readable.

Just use Google Docs
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Old 06-29-2013, 10:01 AM   #3
Robman7835
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WRB

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I'm not sure why you cannot read them. They open up fine for me, and I've tried on more then one computer. google docs, and dropbox provide the same service so I'm not sure how linking through them will make any difference for you.
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Old 06-29-2013, 12:17 PM   #4
jebjkey
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2006 Evolution MR

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I can see everything but none of it is lined up. Probably due to the .CSV file?
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Old 06-29-2013, 05:47 PM   #5
Cathexis
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Stg. 2 - 287whp/317wtq.

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My phone does not recognize this as a spreadsheet/csv/excel type file like it does from google docs either. From google docs it opens up the office app so it's viewable. You will find a great many people on here who only view nasioc wiyh their phone.
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Old 06-29-2013, 06:26 PM   #6
paul_p1
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There's a fairly sizeable dip in boost at that range, then it recovers. You could be feeling that.
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Old 06-29-2013, 08:41 PM   #7
Robman7835
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Quote:
Originally Posted by paul_p1 View Post
There's a fairly sizeable dip in boost at that range, then it recovers. You could be feeling that.
Yea that's what I saw too. I'm not sure what the cause is.... Any ideas?
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Old 06-29-2013, 09:33 PM   #8
Robman7835
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Quote:
Originally Posted by Cathexis View Post
My phone does not recognize this as a spreadsheet/csv/excel type file like it does from google docs either. From google docs it opens up the office app so it's viewable. You will find a great many people on here who only view nasioc wiyh their phone.
When I get home I'll be sure to post the logs via google docs
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Old 06-30-2013, 07:51 AM   #9
paul_p1
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WR Blue

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You need to tune your turbo dynamics/wastegate dc's in that area.
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