2001 TOYOTA SEQUOIA air filter

A00307
ON
VSV is ON VSV is OFF
Air Filter Air
Air
E
FE
F
BE6653
FI7073 FI7074
± DIAGNOSTICSENGINE
DI±501
695 Author: Date:
2005 SEQUOIA (RM1146U)
INSPECTION PROCEDURE
1 Connect hand±held tester, and check operation of VSV for ACIS.
PREPARATION:
(a) Connect the hand±held tester to the DLC3.
(b) Turn the ignition switch ON and push the hand±held tes-
ter main switch ON.
(c) Select the ACTIVE TEST mode on the hand±held tester.
CHECK:
Check the operation of the VSV when the VSV is operated by
the hand±held tester.
OK:
VSV is ON:
Air from port E flows out through port F.
VSV is OFF:
Air from port E flows out through the air filter.
OK Check for vacuum tank (See page SF±54).
NG
2 Check VSV for ACIS (See page SF±54).
NG Replace VSV for ACIS.
OK

F19467
Height Control Cleaner
Exhaust Chamber
OUT IN
F19468
Compressed Air DI±704
± DIAGNOSTICSAIR SUSPENSION SYSTEM
898 Author: Date:
2005 SEQUOIA (RM1146U)
Height Control Cleaner
The height control cleaner consists of a filter to remove dust and debris, and an expansion chamber
to reduce the intake sound. In consideration of dusty areas, this cleaner draws air from the inside of
the vehicle cabin.
This cleaner cannot be disassembled; therefore, it is not possible to replace only the filter element.
Height Control Cylinder Assy (Pneumatic Cylinder)
The pneumatic cylinder consists of a signal type air chamber with a large compressed air capacity in order
to realize excellent riding comfort.

EM±2
± ENGINE MECHANICALCO/HC
2581 Author: Date:
2005 SEQUOIA (RM1146U)
5. IMMEDIATELY CHECK CO/HC CONCENTRATION AT
IDLE AND/OR 2,500 RPM
HINT:
When performing the 2 mode (2,500 rpm and idle) test, follow
the measurement orders are prescribed by the applicable local
regulations.
If the CO/HC concentration does not comply with regulations,
perform troubleshooting in the order given below.
(a) Check the air±fuel ratio sensors and heated oxygen sen-
sors operation.(See page DI±88 and DI±93)
(b) See the table below for possible causes, and then inspect
and correct the applicable causes if necessary.
COHCProblemsCauses
NormalHighRough idle7. Faulty ignitions:

Incorrect timing

Fouled, shorted or improperly gapped plugs
8. Incorrect valve clearance
9. Leaky intake and exhaust valves
10.Leaky cylinders
LowHighRough idle
(fluctuating HC reading)1. Vacuum leaks:

PCV hoses

Intake manifold

Throttle body

Brake booster line
2. Lean mixture causing misfire
HighHighRough idle
(Black smoke from exhaust)1. Restricted air filter
2. Faulty SFI systems:

Faulty pressure regulator

Defective ECT sensor

Faulty ECM

Faulty injectors

Faulty throttle position sensor

Faulty MAF meter

EM11Z±07
A21014
MAF Meter Connector
PS Air HoseHood
Windshield Washer Hose
Engine Under Cover PCV Hose Vacuum Hose
Fan with Fluid Coupling Assembly
Drive Belt
Fan
Pulley
Throttle Body Cover
Radiator Assembly
No.2 Fan
Shroud Air Cleaner and
Intake Air Connector
AssemblyAir Cleaner Case
Air Filter
N´m (kgf´cm, ft´lbf) : Specified torqueMAF Meter Wire
Clip
A/T Oil Cooler Hose
12 (120, 9)29 (296, 21)
Clip
Suction Hose
29 (296, 21)
± ENGINE MECHANICALENGINE UNIT (2WD)
EM±75
2654 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE UNIT (2WD)
COMPONENTS

EM1O7±04
A23399
MAF Meter Connector
PS Air HoseVacuum HoseHood
Windshield Washer Hose
Engine Under Cover PCV Hose
Fan with Fluid Coupling Assembly
Drive Belt
Fan
Pulley
Throttle Body Cover
Radiator Assembly
No.2 Fan
Shroud Air Cleaner and Intake Air
Connector Assembly
Air Cleaner Case
Air Filter
N´m (kgf´cm, ft´lbf) : Specified torqueMAF Meter Wire
Clip
A/T Oil Cooler Hose
12 (120, 9)29 (296, 21)
Clip
Suction Hose
29 (296, 21)
EM±88
± ENGINE MECHANICALENGINE UNIT (4WD)
2667 Author: Date:
2005 SEQUOIA (RM1146U)
ENGINE UNIT (4WD)
COMPONENTS

EC0NO±01
B17454
VSV for EVAP
Charcoal Canister
PCV Valve
EVAP Service
Port
Air Drain Hose VENT LineFilter
Purge Line
EC±2
± EMISSION CONTROLPARTS LAYOUT AND SCHEMATIC DRAWING
2710 Author: Date:
2005 SEQUOIA (RM1146U)
PARTS LAYOUT AND SCHEMATIC DRAWING
LOCATION

EC089±06
B17455
Charcoal
Canister
VSV for EVAP
Air Injection
Control DriverTWC EVAP
Service
PortPurge Line VENT Line
ECM Fuel Tank
Air Filter
ECM To Intake Manifold
Pump Module
M
P
Pressure
Sensor Pump MotorVent ValveRefueling Valve
Air Inlet Line
MP
Air Switching
Valve
Air Switching
Valve No.2
VSVs Air PumpPressure
Sensor
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
SECONDARY AIR INJECTION SYSTEM EC±4
± EMISSION CONTROLPARTS LAYOUT AND SCHEMATIC DRAWING
2712 Author: Date:
2005 SEQUOIA (RM1146U)
DRAWING

EC0JK±03
B17456
Air Filter
Air Drain Hose
Air Inlet Hose
Vent Line Hose
Purge Line Hose
Charcoal Canister
Spare Tire
N´m (kgf´cm, ft´lbf): Specified torque
5.5 (56, 49 in.´lbf)
29 (296, 21)
EC±8
± EMISSION CONTROLEVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
2716 Author: Date:
2005 SEQUOIA (RM1146U)
EVAPORATIVE EMISSION (EVAP) CONTROL SYSTEM
COMPONENTS