It uses ground and hot from the OEM clock wiring, just like my Omori electronic boost gauge which has always worked perfectly. I guess the EGT may just be more sensitive. But I really don't value the EGT gauge nearly as much any more. It'd be cool to fix it, but there's too much uncertainty regarding the real issue and it's just not worth it to me anymore.
I've got it all taken apart again. Soapy water revealed that it was leaking. I have confirmed that the threads I cut into the ex. man. are what stripped. I really wish I had a slightly oversized bolt I could just plug it with and be done.
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Slow and low, that is the tempo.
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