Date registered: May 2011
Vehicle: 1970 Mercedes 250c, 1977 mercedes 230 (put to rest at a junyard she served me well)
Location: Great Barrington, MA
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I would definitely put everything back the way it was before you changed anything, get an in-line spark tester and check for spark at the plugs, if there is none, move the Spark tester to the coil, determine exactly whats going on.
If the car starts but then dies, there is probably spark happening, it might be another issue, or an intermittent issue, but you have to be kind of scientific about it, if you start changing things without really knowing whats wrong you are basically screwing yourself up further.
If the ignition module is bad you can basically bypass it like someone said earlier.