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Check your oil pressure sending unit. Let me explain. During the start cycle there is a fuel pump relay that takes over to run the fuel pump. After the engine is up to three or four PSI that relay turns off and the current for the fuel pump is supplied via the oil pressure sending unit. The logic is that in a bad accident the engine would stop, the oil pressure would go to zero and the electric fuel pump would stop pumping fuel through a possibly ruptured fuel line thus preventing a disastrous fire. If the unit is faulty, it may not be enrgizing the fuel pump.
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