Neal, I've never heard of a Hall-Effect sender working OK at idle and failing at higher RPMs. Usually the heat gets to them and they quit until they cool off. But, anything is possible. Get a can of freeze from Radio Shack to test this theory. I do like the suggestion of inspecting wires underneath the distributor. Be very careful removing the plug, the insulation will be extremely brittle. How old are the spark plugs and associated wires, rotor and cap? I had a plug wire fail inside the metal boot that covers the plug. Current was directed to ground instead of producing a spark. Good Luck, Ken Lewis http://neksiwel.20m.com/ |
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