Sorry, went out for a morning walk with the wifey. I see the picture. Ultimately the problem is the module needs to be grounded in order to work, and it's not getting a good ground from the distributor. This is why it works when you improve the distributor ground with the jumper cable. The right way to fix this would be to remove the distributor from engine and clean the base of it, as well as clean up the top of the intake manifold in order to provide a good ground, reinstall the distributor, and retime the engine. That is the right way, but realistically speaking that is way to much work for a problem like this. What I would do instead is get a length of 12 to 14 gauge stranded wire, and crimp on some eyelet style terminals on each end of that wire. Then attach 1 end of that wire to one of the bolts that hold the module in place, then run the other end of that wire to anyplace there is a good clean ground on the engine block. If you can't find a clean ground, you can bring the other end back to the battery negative terminal. This will properly ground the module (just like the jumper cable was doing) and get your spark back. Does that all make sense. That is where you stand on your end and what the problem is. I think that should do it but I work for tips so I do want to make sure you are happy with my service before you go. If you had a further question on the issue by all means feel free to ask. If not, Just in case you do not understand the way the website works (and some folks do not). You do have to put forth a positive rating in order for it to credit me for helping you. When ratings are not done, the website simply keeps your deposit and they will not credit me. The ratings box is located at the top of the screen. To rate, you must select the star you wish and also confirm it. Please let me know if you run into any problems or errors when trying to do it. If you do have a problem, or if you can not see the ratings box which is at the top of the screen. Please reply back "I rate Jason's service _______" and fill in the blank.
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Thanks in advance, and good luck