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Put the fuel hose you disconnected from the rail into an empty gallon container. Jump the fuel pump relay and the pump should stay running as long as the relay is jumped, otherwise you have a bad pump. If the pump stays running while the relay is jumped then you probably have a bad relay. There is no safety shut off. With the engine not running the PCM will only activate the fuel pump for a few seconds to prime the system. It will then reactivate the relay when it sees a crank signal from the engine spinning
- Nick
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