Quote:
Originally Posted by springerman55
Thanks for the info. I have a freshly rebuilt Bosch CDI box (whines with the ignition key on) and a brand new Bosch ignition coil. Voltage at pin 15 of the CDI harness with the ignition key on is 12V, with the ignition key in the start position is 10.75V. Green wire at the CDI harness measures 622 ohms resistance and 1.36VAC during cranking. No spark (checked with the coil wire pulled out of the distributor cap). Gremlins perhaps???
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If you have 12.0 volts on pin 15 you have a dead battery-- even with the voltage drop from the battery cable from the trunk to the starter through the harness you should still be seeing more than that. What is the exact voltage at the battery with the ignition off? Should be at least 12.5V, at 12.25V the battery is at 25% charge.