Thread: Smoking
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Old 03-29-2013, 10:32 PM   #10
Scooby Guru
Member#: 82745
Join Date: Mar 2005
Chapter/Region: SCIC
Location: So Cal
2005 Subaru STI
2003 EJ207 S204 Wagon


Originally Posted by allfours View Post
Alright thanks, I will be getting the o2 from the dealership so I should be good. From what I have been reading it cant be the rear o2 because that one only monitors the cat in the downpipe? Just looking at diagrams online. Are the front and rear sensors identical? This is what I came up with.
Yes, it's not the rear. No, the front and rear are not identical.

You can buy the Denso version for about a $100 less through amazon. Just look up the part # through the Denso website. It's the exact same sensor as the one Subaru sells (repackages and sells to us for about double the price).
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