AccessPort afr vs true wideband - Subaru WRX Forum
 
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#1 Old 05-12-2012, 10:52 AM
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AccessPort afr vs true wideband

Considering an AEM wideband on my stage 2 wrx. Anyone done this and compared the AP afr to the AEM uego readings? Also, any sensor problems using the extra Cobb dp bung that is in a very easy and convenient spot, but kinda close to the turbo?

Thanks,
Eric
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#2 Old 05-12-2012, 12:08 PM
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The extra bung on the DP is the perfect spot for a wideband. The Cobb reads accurately from what I've seen. I test drove a car with both and it seemed right on what the gauge was reading.

2005 WRX Cobb Stage 2
2009 Outback
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#3 Old 05-12-2012, 09:20 PM
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I have the Cobb DP, with the A/F gauge in that spot. My AFRs between the gauge and the AP are within .1 of each other almost all the time.

Joshua
"2007 WRX- PPG'd, 20G- Tim Bailey tuned
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#4 Old 05-13-2012, 07:11 AM
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The Accessport uses the stock sensor, which is useless for data logging. The sensor mounts close to the turbo, where it's supposed to be for accurate readings, but because of where it is they do eventually fail.

http://www.iwsti.com/forums/cobb-str...lots-data.html
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