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Old 07-23-2017, 12:26 AM   #2 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 5,297

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 59.78 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 1,897
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I think you mean DFCO, not EOC, don't you? I think my UG goes to zero or sits at the last number or shows "err" when I EOC. Assuming it is DFCO you are asking about ... the gauge is reading the upstream O2 Sensor to detect DFCO, so check for a "lazy" 02 (contaminated or otherwise damaged). Hope that helps...

See my car's mod & maintenance thread and my electric bicycle's thread for ongoing projects. I will rebuild Black and Green over decades as parts die, until it becomes a different car of roughly the same shape and color. My minimum fuel economy goal is 55 mpg while averaging posted speed limits. I generally top 60 mpg. See also my Honda manual transmission specs thread.

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