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Old 03-26-2014, 04:08 PM   #13 (permalink)
California98Civic
Cyborg ECU
 
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Join Date: Mar 2011
Location: Coastal Southern California
Posts: 6,299

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: 2,373
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Quote:
Originally Posted by johnlvs2run View Post
I turned the engine off with the key, switched the key right back on, and used a bump to restart the engine. Even though the key was back on, the ultragauge did not show any mpg information while engine off coasting, and I question the results for that reason.
Ah. Okay. My UG sometimes reads "err" where the MPG numbers should be after I click the injector cutoff switch and EOC. But when I restart the engine the numbers come back and then update a second later in a way that suggests the UG was still tracking the data, but that the display got messed-up some by the cutoff. I have been driving everyday for three years like that and generally, my UG shows about what the pump/odometer calculation shows when I refill the tank. Fuel deceleration cutoff with the engine on is another matter. I have only just begun extensively playing with that myself...
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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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