Nissan Maxima Service and Repair Manual: Evaporative emission system

System Diagram

Nissan Maxima. System Diagram

System Description

Nissan Maxima. System Description

*1: ECM determines the start signal status by the signals of engine speed and battery voltage.
*2: This signal is sent to the ECM via the CAN communication line.

SYSTEM DESCRIPTION

The evaporative emission system is used to reduce hydrocarbons emitted into the atmosphere from the fuel system. This reduction of hydrocarbons is accomplished by activated charcoals in the EVAP canister.

The fuel vapor in the sealed fuel tank is led into the EVAP canister which contains activated carbon and the vapor is stored there when the engine is not operating or when refueling to the fuel tank.

The vapor in the EVAP canister is purged by the air via the purge line to the intake manifold when the engine is operating. EVAP canister purge volume control solenoid valve is controlled by ECM. When the engine operates, the flow rate of vapor controlled by EVAP canister purge volume control solenoid valve is proportionally regulated as the air flow increases.

EVAP canister purge volume control solenoid valve also shuts off the vapor purge line during decelerating and idling.

Nissan Maxima. SYSTEM DESCRIPTION

EVAPORATIVE EMISSION LINE DRAWING

Nissan Maxima. EVAPORATIVE EMISSION LINE DRAWING

  1. Intake manifold collector
  2. EVAP canister purge volume control solenoid valve
  3. EVAP service port
  4.  From EVAP canister
    : Vehicle front

Nissan Maxima. EVAPORATIVE EMISSION LINE DRAWING

  1. EVAP canister vent control valve
  2. EVAP canister system pressure sensor
  3. EVAP canister
  4. Rear suspension member
  5. Drain filter
    : Front
    : Previous/next figure

NOTE: Do not use soapy water or any type of solvent while installing vacuum hose or purge hoses.

Component Parts Location

Nissan Maxima. Component Parts Location

  1. Intake valve timing control solenoid valve (bank 1)
  2. Electronic controlled engine mount control solenoid valve
  3. Exhaust valve timing control magnet retarder (bank 2)
  4. Intake valve timing control solenoid valve (bank 2)
  5. Knock sensor (bank 1 and 2)
  6. Fuel injector (bank 2)
  7. Ignition coil (with power transistor) and spark plug (bank 2)
  8. Exhaust valve timing control position sensor (bank 2)
  9. Crankshaft position sensor (POS)
  10. Engine coolant temperature sensor
  11. Camshaft position sensor (PHASE) (bank 2)
  12. Transmission range switch
  13. Refrigerant pressure sensor
  14. ECM
  15. Battery current sensor
  16. Condenser-2
  17. EVAP canister purge volume control solenoid valve
  18. Mass air flow sensor (with intake air temperature sensor)
  19. Camshaft position sensor (PHASE) (bank 1)
  20. EVAP service port
  21. Power valve actuator 2
  22. Electric throttle control actuator
  23. Exhaust valve timing control position sensor (bank 1)
  24. Ignition coil (with power transistor) and spark plug (bank 1)
  25. Fuel injector (bank 1)
  26. VIAS control solenoid valve 1 and 2
  27. Power valve actuator 1
  28. Exhaust valve timing control magnet retarder (bank 1)
  29. Power steering pressure sensor

Nissan Maxima. Component Parts Location

  1. Mas air flow sensor (with intake air temperature sensor)
  2. Air cleaner case
  3. Engine coolant temperature sensor (view with engine cover removed)
  4. EVAP canister purge volume control solenoid valve (view with engine cover removed)
  5. Power valve actuator 1 (view with engine cover removed)
  6. VIAS control solenoid valve 1
  7. VIAS control solenoid valve 2
  8. Power valve actuator 2
  9. Power steering pressure sensor
  10. Tie rod (RH)
  11. Camshaft position sensor (PHASE) (bank 1) (view with air cleaner case removed)
  12. Exhaust valve timing control position sensor (bank 1)
  13. Camshaft position sensor (PHASE) (bank 2) (view with air cleaner case removed)
  14. Exhaust valve timing control position sensor (bank 2)
  15. Engine oil temperature sensor
    : Vehicle front

Nissan Maxima. Component Parts Location

  1. A/F sensor 1 (bank 1) (view with engine removed)
  2. A/F sensor 1 (bank 2)
  3. HO2S2 (bank 1) harness connector (view with engine removed)
  4. HO2S2 (bank 2) harness connector
  5. Front engine mount
  6. Crankshaft position sensor (POS)
    : Vehicle front

Nissan Maxima. Component Parts Location

  1. Electronic controlled engine mount control solenoid valve (view with engine cover removed)
  2. EVAP control system pressure sensor (view with rear suspension member removed)
  3. EVAP canister vent control valve
  4. EVAP canister 5. Fuel injector harness connector (view with intake manifold collector removed)
  5. Exhaust valve timing control magnet retarder (bank 1) (view with engine removed)
  6. Intake valve timing control solenoid valve (bank 1)
  7. Intake valve timing control solenoid valve (bank 2)
  8. Exhaust valve timing control magnet retarder (bank 2)
    : Vehicle front

Nissan Maxima. Component Parts Location

  1. Knock sensor (bank 2) (view with intake manifold removed)
  2. Knock sensor (bank 1)
  3. Transmission range switch (view with CVT removed)
  4. Battery
  5. IPDM E/R
  6. ECM
  7. Refrigerant pressure sensor (view with front grille removed)
  8. Accelerator pedal position sensor
    : Vehicle front

Nissan Maxima. Component Parts Location

  1. Stop lamp switch
  2. ASCD brake switch
  3. ASCD steering switch

Component Description

Component Reference

  • A/F sensor 1 EC-218, "Description"
  • Accelerator pedal position sensor EC-467, "Description"
  • Camshaft position sensor (PHASE) EC-300, "Description"
  • Crankshaft position sensor (POS) EC-296, "Description"
  • Engine coolant temperature sensor EC-201, "Description"
  • EVAP canister purge volume control solenoid valve EC-323, "Description"
  • EVAP control system pressure sensor EC-343, "Description"
  • Fuel tank temperature sensor EC-269, "Description"
  • Mass air flow sensor EC-183, "Description" Throttle position senso
    Electronic controlled engine mount
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: This signal is sent to the ECM via the CAN communication line. SYSTEM DESCRIPTION The ECM controls the engine mount operatio ...

    Exhaust valve timing control
    System Diagram System Description INPUT/OUTPUT SIGNAL CHART *: This signal is sent to the ECM via the CAN Communication line. SYSTEM DESCRIPTION This mechanism magnetically controls c ...

    Other materials:

    P0196 EOT sensor
    Description The engine oil temperature sensor is used to detect the engine oil temperature. The sensor modifies a voltage signal from the ECM. The modified signal returns to the ECM as the engine oil temperature input. The sensor uses a thermistor which is sensitive to the change in te ...

    Periodic maintenance
    REAR SUSPENSION ASSEMBLY On-vehicle Service Check the suspension parts for excessive play, cracks, wear or damage. Shake each rear wheel to check for excessive play. Retighten all nuts and bolts to the specified torque. Make sure that the cotter pin is installed. Check the rear sho ...

    Opening the fuel-filler door
    The fuel-filler door automatically unlocks when the driver's door is unlocked. 1. Unlock the fuel-filler door using one of the following operations. Unlock the driver's door with the Intelligent Key. Push the power door lock switch to the unlock position. Push the door handle re ...

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