China Naming Network - Ziwei knowledge - 2005 Dongfeng Nissan Yida, engine number HR 16DE, suddenly stopped running. What should I do?

2005 Dongfeng Nissan Yida, engine number HR 16DE, suddenly stopped running. What should I do?

1. Self-diagnose the engine system with a diagnostic instrument, and there is no fault code.

2. Check and clean the fuel injector, throttle valve and intake manifold, and check the fuel pump and spark plug. There is no abnormality.

3. Carry out a road test, and the vehicle fails after driving 15 minutes. At this time, self-diagnosis is performed, and there is no fault code.

4. Conduct flashover test, and there is no high-voltage electricity to catch fire, indicating that the ignition coil does not output high-voltage electricity.

5. Unplug the plug of the ignition coil, turn on the ignition switch, and measure the voltage of the power supply terminal, which is 6. It is 8V at static state and 4.4V at startup.

6. Looking at the circuit diagram, we know that the power supply of the ignition coil is provided by the terminal 47 of the intelligent power control unit (IPDM E/R), which corresponds to the ECM relay inside IPDM E/R. ..

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