RCU Forums - View Single Post - PCM or FM RX on an electronic iginition engine?
Old 06-19-2005 | 09:05 AM
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Big_Bird
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Default RE: PCM or FM RX on an electronic iginition engine?


ORIGINAL: HotelSierra

Thanks guys, I'll stick with the FM receiver. How can you tell if an engine has a shielded spark plug cap?
If the engine has a rubber spark plug cap, it is not shielded. If it has a metal spark plug cap, it is shielded.