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Why does my Ecm fuse keeps blowing out on 91 astro?

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Answered 2008-10-05 19:15:26

direct short! the fuse not only runs the ecm but it also handles the fuel pump as well as all the electronic devices on the motors its self. for example, the power doing to the fuel injector solenoids. so you have a direct short with enough amps to pop that fuse

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