Nissan Juke Service and Repair Manual : Electric ignition system

Electric ignition system  : System Diagram

Electric ignition system  : System Description


Electric ignition system  : System Description

INPUT/OUTPUT SIGNAL CHART

*1: CVT models


*1: CVT models
*2: M/T models
*3: ECM determines the start signal status by the signals of engine speed and battery voltage.

SYSTEM DESCRIPTION

Firing order: 1 - 3 - 4 - 2 The ignition timing is controlled by the ECM to maintain the best air-fuel ratio for every running condition of the engine. The ignition timing data is stored in the ECM.

The ECM receives information such as the injection pulse width and camshaft position sensor (PHASE) signal.

Computing this information, ignition signals are transmitted to the power transistor.

During the following conditions, the ignition timing is revised by the ECM according to the other data stored in the ECM.

Х At starting
Х During warm-up
Х At idle
Х At low battery voltage Х During acceleration

The knock sensor retard system is designed only for emergencies. The basic ignition timing is programmed within the anti-knocking zone, if recommended fuel is used under dry conditions. The retard system does not operate under normal driving conditions. If engine knocking occurs, the knock sensor monitors the condition.

The signal is transmitted to the ECM. The ECM retards the ignition timing to eliminate the knocking condition.

    Fuel pressure control
    Fuel pressure control : System Diagram Fuel pressure controlL : System Description INPUT/OUTPUT SIGNAL CHART *: ECM determines the start signal status by the engine speed signal and battery v ...

    Intake valve timing control
    Intake valve timing control : System Diagram Intake valve timing control : System Description INPUT/OUTPUT SIGNAL CHART SYSTEM DESCRIPTION This mechanism hydraulically controls cam phases co ...

    Other materials:

    Ignition coil, spark plug and rocker cover
    Exploded View 1. Ignition coil 2. Spark plug 3. Rocker cover 4. Hose cramp 5. PCV hose 6. PCV valve 7. O-ring 8. Gasket 9. Oil filler cap 10. O-ring 11. Camshaft position sensor (INT) 12. Camshaft position sensor (EXH) 13. Cramp A. To intake manifold : Always replace after e ...

    Throttle valve closed position learning
    Description Throttle Valve Closed Position Learning is a function of ECM to learn the fully closed position of the throttle valve by monitoring the throttle position sensor output signal. It must be performed each time the harness connector of the electric throttle control actuator or ECM is ...

    System
    System Diagram MODELS WITH USB CONNECTION FUNCTION NOTE: An antenna base integrated with radio antenna amp. is adopted. MODELS WITHOUT USB CONNECTION FUNCTION NOTE: An antenna base integrated with radio antenna amp. is adopted. System Description AUDIO SYSTEM Audio functions AUDIO ...