Stage 1 Data Log A/F Learning??? - Subaru WRX Forum
 
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#1 Old 03-03-2012, 11:34 AM
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Stage 1 Data Log A/F Learning???

I am currently running stage 1 with an SPT intake. I am concerned with the A/F Learning.... Here is the datalog
https://docs.google.com/spreadsheet/...zhfUFlWdkQxWlE

Does it look like I should try to find a stock air box?

Also, does anybody know if Cobb released v3.10 maps for 2007 WRX?
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#2 Old 03-03-2012, 07:37 PM
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Not sure on your logs as this is something Im still trying to learn and understand. But if you are curious about Cobbs release you can always look on their website or forums for updates as they come available.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
Stage 2 2005 WRX
Cobbtuning.com"
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#3 Old 03-05-2012, 05:55 AM
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11/12's aren't bad.... but you need a tune for it either way

How long has the intake been on there... and this is a 3rd gear pull, right?

Paul
2007 XT
2007 MS3
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#4 Old 03-05-2012, 10:46 AM
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SPT intake is not compatible with base map tunes, though technically you should be running rich.
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#5 Old 03-06-2012, 01:59 PM
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That is a bit on the extreme side. Are you sure this was third gear? I would have thought your boost would be higher.

2005 WRX Cobb Stage 2
2009 Outback
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#6 Old 03-07-2012, 08:39 PM
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I cleared my check engine light the other day and my A/F learning has been in the low single digits now. I get CEL P0420 and will be getting a downpipe soon to lose my bad cat and go stage 2. The pull was in third gear and I think my boost is pretty much right on for a 2007 stage 1 (Cobb target is ~13.5). I think I might try to track down a stock air box first though as I don't really want to ruin my engine for a noise maker.... Should the intake make me run rich because more air is getting in than the MAF picks up? I would think more air would tend to make it run lean.
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#7 Old 03-08-2012, 05:50 AM
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Rich since the COBB tunes run this way. The SPT intake isn't much for air intakes (not much different than stock).

Paul
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#8 Old 03-10-2012, 09:01 PM
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If the SPT isn't much different than stock why would it require a tune? I still think I might try to trade my SPT for a stock air box. Since my car is my daily driver with 113,xxx miles on it I think that following the map's requirements to the "T" is probably worth it... With that being said anyone want to trade a stock air box for an SPT intake???
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