Lexus GS300/400 (2000 year). Manual - part 212

A02640

Ohmmeter

SF0NR–03

–

SFI (2JZ–GE)

CAMSHAFT TIMING OIL CONTROL VALVE

SF–41

1507

CAMSHAFT TIMING OIL CONTROL
VALVE

ON–VEHICLE INSPECTION

1.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
RESISTANCE

(a)

Disconnect the oil control valve connector.

(b)

Using an ohmmeter, measure the resistance between the
terminals.
Resistance: 5.5 – 12 

Ω

 at 20

°

C (68

°

F)

If the resistance is not as specified, replace the valve.
(c)

Reconnect the oil control valve connector.

2.

INSPECT VVT–i OPERATION

(a)

Allow the engine to warm up to normal operating tempera-
ture.

(b)

Check that the engine stalls or becomes in rough–idling
state when the battery positive voltage is applied to the oil
control valve with the engine idling.

If operation is not as specified, check the oil control valve (see
page 

SF–43

), VVT–i pulley, intake camshaft, wiring and ECM.

SF0NQ–01

B01613

Oil Filler Cap

No.3 Timing Belt Cover

Camshaft Timing Oil
Control Valve Connector

 O–Ring

Gasket

Camshaft Timing
Oil Control Valve

 Non–reusable part

SF–42

–

SFI (2JZ–GE)

CAMSHAFT TIMING OIL CONTROL VALVE

1508

COMPONENTS

A02639

SF0NS–01

B01805

Valve

2

1

Battery positive voltage is applied

Battery positive voltage is cut off

Valve moves in

Valve moves in

direction

direction

–

SFI (2JZ–GE)

CAMSHAFT TIMING OIL CONTROL VALVE

SF–43

1509

INSPECTION

1.

REMOVE NO.3 TIMING BELT COVER

2.

REMOVE CAMSHAFT TIMING OIL CONTROL VALVE

(a)

Disconnect the oil control valve connector.

(b)

Remove the bolt, oil control valve and O–ring.

3.

INSPECT CAMSHAFT TIMING OIL CONTROL VALVE
OPERATION

Connect positive (+) lead from the battery to terminal 1 and neg-
ative (–) lead to terminal 2, and check the movement of the
valve.

If operation is not as specified, replace the valve.
4.

REINSTALL CAMSHAFT TIMING OIL CONTROL
VALVE

(a)

Install a new O–ring to the oil control valve.

(b)

Install the oil control valve with the bolt.
Torque: 8.0 N·m (80 kgf·cm, 71 in.·lbf)

(c)

Connect the oil control valve connector.

5.

REINSTALL NO.3 TIMING BELT COVER
Torque: 8.0 N·m (80 kgf·cm, 71 in.·lbf)

SF0NT–03

B01583

Actuator

Vacuum Gauge

VSV

P10710

No Vacuum

Vacuum Gauge

P10844

Approx.
33.3 kPa

Pull

Actuator
Rod

Vacuum Gauge

SF–44

–

SFI (2JZ–GE)

ACOUSTIC CONTROL INDUCTION SYSTEM (ACIS)

1510

ACOUSTIC CONTROL INDUCTION
SYSTEM (ACIS)

ON–VEHICLE INSPECTION

1.

REMOVE ENGINE COVER

Remove the 4 nuts and engine cover.

2.

CONNECT VACUUM GAUGE

Using a 3–way connector, connect vacuum gauge to the hose
between the actuator and VSV.
3.

START ENGINE

4.

INSPECT INTAKE AIR CONTROL VALVE

(a)

While the engine is idling, check that the vacuum gauge
needle does not move.

(b)

Rapidly depress the accelerator pedal to fully open posi-
tion and check that the vacuum gauge needle momentari-
ly fluctuates approx. 33.3 kPa (250 mmHg, 9.84 in.Hg) or
more. (The actuator rod is pulled down.)

5.

REMOVE VACUUM GAUGE

Remove the vacuum gauge, and reconnect the  vacuum hoses
to their proper locations.
6.

REINSTALL ENGINE COVER

Reinstall the engine cover with the 4 nuts.