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Old 08-08-2012, 08:38 PM   #1
devildoc82
Scooby Newbie
 
Member#: 158125
Join Date: Sep 2007
Chapter/Region: NWIC
Location: Bellingham, WA
Vehicle:
2004 WRX
WRB

Default 2004 WRX Datalog, no boost past 7 psi

I've read a lot of threads about this problem (only hitting wastegate boost), about how it's due to the missing restriction pill and/or bad BCS (I found both for very cheap, and will get the parts soon). In the meantime, I did an ECU reset and cleaned out the BCS with MAF cleaner. No change--and I did feel around for the pill but the vacuum line is so stiff it's hard to tell.

Anyways, is there any recommendation on anything else I should be on the lookout for? I've posted a datalog below, it's hard for me to redline to 3rd because of the area I live in, but I don't know if it's even worth it since the problem is pretty apparent. It's a stock, Stage 1 (ACN 91 v310) WRX (with SPT intake). Thanks guys.

https://docs.google.com/spreadsheet/...m9IcXNvRVpnM1E
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Old 08-09-2012, 09:43 AM   #2
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
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Quote:
Originally Posted by devildoc82 View Post
I've read a lot of threads about this problem (only hitting wastegate boost), about how it's due to the missing restriction pill and/or bad BCS (I found both for very cheap, and will get the parts soon). In the meantime, I did an ECU reset and cleaned out the BCS with MAF cleaner. No change--and I did feel around for the pill but the vacuum line is so stiff it's hard to tell.

Anyways, is there any recommendation on anything else I should be on the lookout for? I've posted a datalog below, it's hard for me to redline to 3rd because of the area I live in, but I don't know if it's even worth it since the problem is pretty apparent. It's a stock, Stage 1 (ACN 91 v310) WRX (with SPT intake). Thanks guys.

https://docs.google.com/spreadsheet/...m9IcXNvRVpnM1E
When you are that far down on boost, it definitely points to a mechanical issue and the log isn't going to tell which mechanical issue, so you have run down the line.

Check out this document:
http://www.cobbtuning.com/Technical-...es-s/70674.htm

Bill
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