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FL-2 < PRECAUTION > [MR16DDT ] PRECAUTIONS PRECAUTION PRECAUTIONS General Precautions INFOID:0000000012197578 WARNING: When replacing fuel line parts, be sure to observe the following. • Put a “CAUTION: FLAMMABLE” sign in the workshop. • Be sure to work in a well ventilated area and furnish workshop with a CO 2 fire extinguisher. • Never smoke while servicing fuel system. Keep open flames and sparks away from the work area. CAUTION: • Use gasoline required by the regulations for octane number. Refer to . • Before removing fuel line parts, perform out the following procedures: - Put drained fuel in an explosion-proof container and put the lid on securely. Keep the container in safe area. - Release fuel pressure from the fuel lines. Refer to . - Disconnect the battery cable from the negative terminal. • Always replace O-ring and clamps with new ones. • Never kink or twist tubes when they are being installed. • Never tighten hose clamps excessively to avoid damaging hoses. • After installing tubes, check there is no fuel leakage at connections in the following steps. - Apply fuel pressure to fuel lines with turning ignition switch “ON” (with engine stopped). Then check for fuel leakage at connections. - Start engine and rev it up and check for fuel leakage at connections. • Use only a genuine NISSAN fuel filler cap as a replacement. If an incorrect fuel filler cap is used, the “MI” may come on. Precautions for Removing Battery Terminal INFOID:0000000013378438 When disconnecting the battery terminal, pay attention to the following. • Always use a 12V battery as power source. • Never disconnect battery terminal while engine is running. • When removing the 12V battery terminal, turn OFF the ignition switch and wait at least 30 seconds. • For vehicles with the engine listed below, remove the battery termi- nal after a lapse of the specified time: NOTE: ECU may be active for several tens of seconds after the ignition switch is turned OFF. If the battery terminal is removed before ECU stops, then a DTC detection error or ECU data corruption may occur. • After high-load driving, if the vehicle is equipped with the V9X engine, turn the ignition switch OFF and wait for at least 15 minutes to remove the battery terminal. NOTE: • Turbocharger cooling pump may operate in a few minutes after the ignition switch is turned OFF. • Example of high-load driving - Driving for 30 minutes or more at 140 km/h (86 MPH) or more. - Driving for 30 minutes or more on a steep slope. • For vehicles with the 2-batteries, be sure to connect the main battery and the sub battery before turning ON the ignition switch. NOTE: If the ignition switch is turned ON with any one of the terminals of main battery and sub battery discon- nected, then DTC may be detected. D4D engine : 20 minutes YS23DDT : 4 minutes HRA2DDT : 12 minutes YS23DDTT : 4 minutes K9K engine : 4 minutes ZD30DDTi : 60 seconds M9R engine : 4 minutes ZD30DDTT : 60 seconds R9M engine : 4 minutes V9X engine : 4 minutes YD25DDTi : 2 minutes SEF289H |