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2015 Forester CVT
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8 Posts
Discussion Starter #1
Can someone please describe the location of the upstream oxygen sensor connection? Is it only accessible from below?
Thanks!
 

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2015 Forester 2.5i Limited CVT
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840 Posts
You should be able to follow the wire up to the engine bay. You may have to remove the air intake snorkel and engine cover. You will see it. Bright colored wire sheath. Removal will be from below or from passenger side wheel well with tire removed.
 

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2011 Subaru Forester
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830 Posts

read my thread above. I put in pics of the location. You can access the connector through the front passenger side wheel well after you have disconnected the plastic under cladding on that side. The oxygen sensor has a yellow wire that goes in a black connector, the air-fuel sensor (the upstream) has a bright green wire and a light gray connector.
 
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