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| BRZ First-Gen (2012+) — General Topics All discussions about the first-gen Subaru BRZ coupe |
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05-07-2022, 10:59 AM
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#1 |
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New BRZ Guy
Join Date: May 2022
Drives: 2022 Subaru BRZ
Location: Mid Atlantic - Virginia
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Downsteam O2, Does it Control Fuel Trims?
I know, I know. Majority will say, "Downstream o2 will only see if the cat is functioning well".
However, on this platform. Especially the stock BRZ, Not tuned. Does the downstream o2 sensor affect fuel trim? |
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05-07-2022, 09:03 PM
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#2 |
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Wheels for Brains
Join Date: May 2017
Drives: '14 FR-S [37J] | Daily/Track
Location: Los Angeles
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Yes. It is used for lean cruise during closed loop mode (helps improve fuel economy and emissions when you are holding a steady speed such as highway driving)
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