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Old 10-31-2016, 01:33 PM   #6 (permalink)
Cyborg ECU
California98Civic's Avatar
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,134

Black and Green - '98 Honda Civic DX Coupe
Team Honda
90 day: 66.42 mpg (US)

Black and Red - '00 Nashbar Custom built eBike
90 day: 3671.43 mpg (US)
Thanks: 2,320
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Great info. Thanks for sharing your research. The standard test for the 02 and the ECU in the Honda FSM is "replace with known good"--as if the FSM assumes you are at a dealership and have ready access to replacement parts or something, lol.

Check connections to the ECU, making sure the tech really hooked it up correctly. Check the O2 as well. I know it was good before, but there are coincidences and maybe something is suddenly registering differently,or has suddenly failed. My OEM starter motor was failing intermittently and I carried around a wrench to tap it everynow and then so it would work normally. Three years ago, I swapped my transmission, and my starter problem went away permanently. Then, suddenly, the slave cylinder on the hydraulic clutch mechanism had a complete failure. Ghosts in the machine do odd things.
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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