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03-16 (6) Low Pressure System Pressure Test Inspection procedure ▶ All wirings/connectors and fuel lines should be connected and the engine should work properly. Prepare a special tool for low pressure test and clean it thoroughly to prevent foreign materials from entering. 1. 2. Disconnect the key connector for fuel filter connection, and connect both connectors to the fuel filter and hose. 3. Start the engine and check visually for clogged low pressure fuel system, excessive air or air entry. If the fuel flow is not sufficient or air is in the fuel, repair the leak area. 4. 5. |