Thread: My new FR-S!
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Old 07-22-2015, 04:16 PM   #51 (permalink)
MetroMPG
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Location: 1000 Islands, Ontario, Canada
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Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 54.46 mpg (US)

Appliance car Mirage - '14 Mitsubishi Mirage ES (base)
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Can you explain why it came on?

I think it comes from comparing the upstream O2 sensor against the post-cat sensor, no?

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