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springerman55 springerman55 is offline
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Join Date: May 2008
Location: Georgetown, TX
Posts: 66
Porsche Crest

Now I'm really confused. Dead battery? The voltage at the battery measures 12.33VDC and I get exactly 12.25VDC at the CDI harness with the ignition key ON. How can the battery be dead and yet spin the engine quite rapidly? Please explain. Is 10.75VDC at the CDI harness during cranking an insufficient voltage to run the CDI box? Does "dead battery" translate to being a weak battery and not a dead battery. Dead battery to me means that the battery will do nothing. The battery is an Optima Red Top 34/78 model. I guess a quick jump to another battery would be a good test.
Old 11-05-2010, 10:33 AM
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