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Old 12-11-2011, 12:52 AM   #37 (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 3dplane View Post
You could only over tax your alternator if you allow it to charge up a severely discharged battery.... your alternator might be just going out regardless of your mods!
I have also seen odd charging behavior by the ghost in the machine. But testing today at the battery posts with engine off, engine warm and idling, and engine idling with extra elect load showed normal operating ranges for the alternator. What could cause intermittent (one time only) high voltage DTCs in the coolant temp sensor, Electric Load Detector, O2 sensor, and MAP sensor each? Could the battery mod have effected the electric load detector in a way that is creating voltage spikes?
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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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