To jump start the fuel pump on a 1999 Pontiac Sunfire, locate the fuel pump relay in the fuse box. Remove the relay and use a jumper wire to connect terminals 30 and 87, which will bypass the relay and send power directly to the fuel pump. Ensure the ignition is in the "on" position, and listen for the pump to activate. Always be cautious when working with fuel systems to avoid fire hazards.
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