12-08-2011, 09:36 AM
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#41 (permalink)
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Master EcoModder
Join Date: Dec 2007
Location: Texas
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I have no idea what, if any, differences there are between the 96, 97 and 98 ecu's. Just to be safe, I'd go with the closest to what you have now, so that would be the 97.
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- - - - -Best 11-mile commute: 105 mpg
- - - - -Best tank: 88.5 mpg / 1133 miles
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12-08-2011, 10:13 AM
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#42 (permalink)
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60+ mpg at posted speeds
Join Date: Mar 2011
Location: Coastal Southern California
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Quote:
Originally Posted by PaleMelanesian
I have no idea what, if any, differences there are between the 96, 97 and 98 ecu's. Just to be safe, I'd go with the closest to what you have now, so that would be the 97.
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The 97 was for the California emissions version. I have been trying unsuccessfully to find out what if anything that would have meant for FE. BTW, your 96 DX was rated slightly better for MPG than my 98 DX (still is under the new rules too). Mine was 32/37 and yours had been 33/38. You see this slight FE drop across the Civics 1996-1998. Not sure if its EPA or Honda tuning the ECU or something. Yours still came with 13" wheels, but I am willing to gamble that maybe the changed ECU tuning a little for more power?
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Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.
Calculators: standard deviation, Ohms Law, & drag HP losses.
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12-08-2011, 01:18 PM
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#43 (permalink)
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Master EcoModder
Join Date: Dec 2007
Location: Texas
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Ah, I missed the Cali part. I'd get the 49-state one then.
I think they added extra safety gear to the doors, adding a little weight. That, and the 14" rims and 10mm wider tires.
__________________
- - - - -Best 11-mile commute: 105 mpg
- - - - -Best tank: 88.5 mpg / 1133 miles
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12-13-2011, 03:13 PM
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#44 (permalink)
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60+ mpg at posted speeds
Join Date: Mar 2011
Location: Coastal Southern California
Posts: 1,190
Thanks: 384
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Fixed, it seems. Thanks to all for your input. All the baffling DTCs were apparently merely incidental, and they are gone and not returning. I did not buy the ECU, and I'm glad. I did not buy the new MAP sensor, and I'm glad. Testing and trouble shooting gradually revealed the reality: my troubles seem to have been caused by a partial failure of the ignition coil. When I had tested the coil a few weeks ago by simply warming up to running temp it was fine. But as the distributor gets hotter during 15mins of 2200 RPMs it fails. The ICM was fried too. I bought a new rebuilt distributor (got a lifetime warranty!). Honda-tech.com was absolutely indispensable!
__________________
Black and Green will be rebuilt over decades as parts die--until it becomes a different car. Goal is only 60-70 mpg at posted speeds. I'm not trying for highest possible mileage.
Calculators: standard deviation, Ohms Law, & drag HP losses.
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12-13-2011, 07:14 PM
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#45 (permalink)
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Master EcoModder
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Wow, that's a nasty problem! I'm glad you were able to troubleshoot it successfully.
H-T is a very valuable source of info, but sadly there is an awful lot of stupidity and locker-room behavior to dig through to get to that information. (And some mis-information too.)
-soD
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12-13-2011, 08:08 PM
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#46 (permalink)
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EcoModding Lurker
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Wow ! What an involved process,but look at what you know about your civic now....
Congrats and happy and profitable hypermiling. -Honfit
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12-14-2011, 09:35 AM
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#47 (permalink)
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Master EcoModder
Join Date: Dec 2007
Location: Texas
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I know more about my civic after this. Thanks for reporting it all for us.
__________________
- - - - -Best 11-mile commute: 105 mpg
- - - - -Best tank: 88.5 mpg / 1133 miles
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