[Jeremy911T]

Originally Posted by mysocal911

There're only two possibilities;
1. The "C" wire is still shorted to ground.
2. There's an internal problem in the CDI.

You need to power-up the CDI out of the car and measure the "C" pin of the CDI.



You checked the CDI on the bench?

You need to disconnect the CDI from its connector and measure terminal "C" with a meter to ground (CDI case) for continuity, key-off.
Then measure the "C" pin (ohms), with the CDI disconnected, to ground (CDI case).

Did your rebuilder ever indicate the failure mode of your CDI?

By the way, where are you located?

Hi Dave, First thank you for responding and helping. I appreciate it. I ran all the tests and this is what I found:

1. The B terminal on the plug measures 12 V with the ignition on. However, when I connect the B terminal on the plug with the B pin on the CDI via an alligator clip, the voltage on the B pin goes to <1 V and the C pin reads < 1 V. If I connect the B pin on the CDI directly to the battery the C pin reads 12 V. I think this is where the problem may lie. When the CDI unit is plugged into its connector, the voltage drops to <1.

2. When I check the continuity between the C terminal on the plug to it's connection to the distributor, it reads <1 ohm. Looks like the C wire to the distributor is ok??

3. When I measure terminal C to ground on the CDI case, it measure 1-10 ohms depending where I ground on the case.

4. I also checked the continuity of the coil and everything is within spec.

Looks like we may be narrowing it down. What do you think could be going on?

Thanks,

Jeremy