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#15: 02-06-2013, 08:16 PM
Kiyo1990's Avatar
Title: Contributor
Location: Aurora, Illinois
Car: 1997 Subaru Legacy GT Automatic
Posts: 469
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I do have a question on how Subaru sensors are located. As in, which is sensor location coded?! Which is front o2, rear 02 and last 02? I have the p0420 code and am replacing the o2s, headers and car (due to rusted flange).

Edit: what confuses me in monster...I thought the downstream would be b1s2, being its down stream. Correct? Or is subaru flipped?

Last edited by Kiyo1990; 02-06-2013 at 08:19 PM..