My 315 poly keeps running after everything turned off..

twodog45 said

Thats not causing it to keep running. When key is turned off it kills power to fuel pump, it's an electronic issue

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I'm not talking about the fuel pump keeping the fuel going. What I'm talking about IS an electronic issue. The fuel pump is feeding power into the ignition once the key is cut off. An electric fan, or most any other electric motor will do the same, unless you isolate the power source from the ignition.