Nissan Maxima Service and Repair Manual: Variable induction air system
Description
Power Valves 1 and 2
The power valves 1 and 2 are installed in intake manifold collector and used to
control the suction passage of
the variable induction air control system. They are set in the fully closed or
fully opened position by the power
valve actuators 1 and 2 operated by the vacuum stored in the vacuum tank. The
vacuum to power valve actuators
is controlled by the VIAS control solenoid valves 1 and 2.
Component Function Check
1.CHECK OVERALL FUNCTION-I
With CONSULT
- Start engine and warm it up to the normal operating temperature.
- Perform "VIAS S/V-1" in "ACTIVE TEST" mode with CONSULT.
- Turn VIAS control solenoid valve 1 "ON" and "OFF", and check that
power valve actuator 1 rod moves.

- Power valve actuator 1
- Power valve actuator 1 rod
- Power valve actuator 2 rod
- Power valve actuator 2
: Vehicle front
Without CONSULT
- Start engine and warm it up to the normal operating temperature.
- When revving engine up to 5,000 rpm quickly.
- Check that power valve actuator 1 rod moves under the following
conditions.

- Power valve actuator 1
- Power valve actuator 1 rod
- Power valve actuator 2 rod
- Power valve actuator 2
: Vehicle front

2.CHECK OVERALL FUNCTION-II
With CONSULT
- Perform "VIAS S/V-2" in "ACTIVE TEST" mode with CONSULT.
- Turn VIAS control solenoid valve 2 "ON" and "OFF", and check that
power valve actuator 2 rod moves.

- Power valve actuator 1
- Power valve actuator 1 rod
- Power valve actuator 2 rod
- Power valve actuator 2
: Vehicle front
Without CONSULT
- When revving engine up to 5,000 rpm quickly.
- Check that power valve actuator 2 rod moves under the following
conditions.

- Power valve actuator 1
- Power valve actuator 1 rod
- Power valve actuator 2 rod
- Power valve actuator 2
: Vehicle front

Diagnosis Procedure
1.INSPECTION START
Confirm the malfunctioning system (power valve 1 or power valve 2).
2.CHECK VACUUM EXISTENCE-I
With CONSULT
- Stop engine and disconnect vacuum hose connected to power valve
actuator 1.
- Start engine and let it idle.
- Perform "VIAS S/V-1" in "ACTIVE TEST" mode with CONSULT.
- Turn VIAS control solenoid valve 1 "ON" and "OFF", and check
vacuum existence under the following conditions.

Without CONSULT
- Stop engine and disconnect vacuum hose connected to power valve
actuator 1.
- Disconnect VIAS control solenoid valve 1 harness connector.
- Start engine.
- When revving engine up to 5,000 rpm quickly.
- Check vacuum existence under the following conditions.

3.CHECK VACUUM TANK
- Stop engine and disconnect vacuum hose connected to intake
manifold collector.
- Start engine and let it idle.
- Check vacuum existence from intake manifold collector.
4.CHECK VACUUM HOSE
- Stop engine.
- Check vacuum hose for cracks, clogging, improper connection
or disconnection.

5.CHECK VIAS CONTROL SOLENOID VALVE 1
6.CHECK VACUUM EXISTENCE-II
With CONSULT
- Stop engine and disconnect vacuum hose connected to power valve
actuator 2.
- Start engine and let it idle.
- Perform "VIAS S/V-2" in "ACTIVE TEST" mode with CONSULT.
- Turn VIAS control solenoid valve 2 "ON" and "OFF", and check
vacuum existence under the following conditions.

Without CONSULT
- Stop engine and disconnect vacuum hose connected to power valve
actuator 2.
- Disconnect VIAS control solenoid valve 1 harness connector.
- Start engine.
- When revving engine up to 5,000 rpm quickly.
- Check vacuum existence under the following conditions.

7.CHECK VACUUM HOSE
- Stop engine.
- Check vacuum hose for cracks, clogging, improper connection
or disconnection.

8.CHECK VIAS CONTROL SOLENOID VALVE 2
9.CHECK INTERMITTENT INCIDENT
Description
The refrigerant pressure sensor is installed at the condenser of the air
conditioner system. The sensor uses an
electrostatic volume pressure transducer to convert refrigerant pressur ...
ECM
Reference Value
VALUES ON THE DIAGNOSIS TOOL
NOTE:
The following table includes information (items) inapplicable
to this vehicle. For information (items) applicable
to this vehi ...
Other materials:
General maintenance
During the normal day-to-day operation of the
vehicle, general maintenance should be performed
regularly as prescribed in this section. If
you detect any unusual sounds, vibrations or
smells, be sure to check for the cause or have a
NISSAN dealer do it promptly. In addition, it is
recommended ...
Vehicle identification number (VIN) plate
The vehicle identification number (VIN) plate is
attached as shown. This number is the identification
for your vehicle and is used in the vehicle
registration.
Vehicle identification number (chassis number)
The vehicle identification number is located as
shown.
Engine serial number
...
Steering gear and linkage
Exploded View
Cotter pin
Steering gear assembly Front
Removal and Installation
NOTE: When removing components such as
hoses, tubes/lines, etc., cap or plug openings to prevent fluid from spilling.
REMOVAL
Remove front wheel and tire using power tool. Refer to WT-60,
"Adjus ...