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HERE IS A WIRING SCHEMATIC. you need to check for power at the fuel pump and if nor power check at relay. should hear relay click when first cut key on pump is energized for two seconds and then when in crank mode also check for your ground at the pump
most likely not. the ecm controls the fuel pump relay which controls the pump. so if it was bad it would not work although ecm can be bad and still allow pump to run depends on what circuits in computer went out.