2007 TOYOTA SIENNA Service Repair Manual

Page 1193 of 3000

TOYOTA SIENNA 2007  Service Repair Manual 2GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 2WD)EC–19
EC
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY 
TERMINAL
2. REMOVE AIR FUEL RATIO SENSOR (for Bank 2 
Sensor 1)
(a) Disconnec

Page 1194 of 3000

TOYOTA SIENNA 2007  Service Repair Manual EC–202GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 2WD)
EC
4. REMOVE EXHAUST MANIFOLD RH
(a) Remove the nut, bolt and exhaust manifold stay.
(b) Disconnect the air fuel ratio sensor (for

Page 1195 of 3000

TOYOTA SIENNA 2007  Service Repair Manual EC–242GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 4WD)
EC
ENGINE
2GR-FE EMISSION CONTROL
AIR FUEL RATIO SENSOR (for 4WD)
COMPONENTS
A162936E01

Page 1196 of 3000

TOYOTA SIENNA 2007  Service Repair Manual 2GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 4WD)EC–25
EC
ON-VEHICLE INSPECTION
HINT:
The type of ignition switch on this model differs according to 
the specifications of the vehicle. F

Page 1197 of 3000

TOYOTA SIENNA 2007  Service Repair Manual EC–262GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 4WD)
EC
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY 
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the 
cable fro

Page 1198 of 3000

TOYOTA SIENNA 2007  Service Repair Manual 2GR-FE EMISSION CONTROL  –  AIR FUEL RATIO SENSOR (for 4WD)EC–27
EC
(d) Remove the 2 bolts, 2 nuts and center exhaust pipe 
assembly.
4. REMOVE EXHAUST MANIFOLD RH
(a) Remove the nut, bolt and exh

Page 1199 of 3000

TOYOTA SIENNA 2007  Service Repair Manual 2GR-FE EMISSION CONTROL  –  HEATED OXYGEN SENSOR (for 2WD)EC–31
EC
ENGINE
2GR-FE EMISSION CONTROL
HEATED OXYGEN SENSOR (for 2WD)
COMPONENTS
A163379E01

Page 1200 of 3000

TOYOTA SIENNA 2007  Service Repair Manual EC–322GR-FE EMISSION CONTROL  –  HEATED OXYGEN SENSOR (for 2WD)
EC
REMOVAL
1. DISCONNECT CABLE FROM NEGATIVE BATTERY 
TERMINAL
CAUTION:
Wait at least 90 seconds after disconnecting the 
cable from