<< When I touch one of the crystal pins with a needle probe Pic locks up and when I remove the probe it starts working again >>
This is absolutely normal ...,
I think you should add a 10µF Tantalum CLOSE to the Pic ( on the pic side of your coil )
<< I replaced the secondary winding earth wire with a high-tension lead and a spark plug and attached the earth to the spark plug outer shell >>
This is "real life" config, it seems ...
You'll Find attached some "bullet proof" scheme ... moreover, easy to use !!!
Alain
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Why insist on using 32 Bits when you're not even able to deal with the first 8 ones ??? ehhhhhh ...
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IF there is the word "Problem" in your question ...
certainly the answer is " RTFM " or " RTFDataSheet " !!!
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