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I have a no spark problem on a 78 dodge truck with 5 pin icm. I followed Scanner Danner process with a multimeter and test light. I see aprox 5 volts on coil+ and 1.5 on coil-. I see a dim test light on coil+ and no light on coil-. When cranking I see bright on coil+ and flickering on coil-. bad coil? It's brand new externally resisted coil specified for the truck. Poking around doing sanity checks I unplugged the icm and all the leads to the ballast. With ignition on I measured voltage on the #1 pin of the icm wiring harness and on all leads on the wiring to the ballast. I expected to see 12v. I see 8v. The battery reads 12v. Is this a red herring? Is threre some reason and mechanism for the low voltage? I don't even know where to begin to find a cause for it. Any advice will be appreciated.
Barry
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