Removal & Installation (Land Cruiser, Sequoia & Tundra 4.7L)
WARNING: This page does not describe the selected car, but rather 10 other vehicles, including the 2002 Toyota Tundra, 2002 Toyota Tacoma, 2002 Toyota Sienna, 2002 Toyota Sequoia, and 2002 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.
- Four heated oxygen sensors are used, one on each exhaust manifold and one on each exhaust pipe, behind catalytic converter. Remove lower engine cover for access to heated oxygen sensor. Disconnect electrical connector for heated oxygen sensor.
- If servicing heated oxygen sensor on exhaust manifold, unscrew heated oxygen sensor from exhaust manifold. If servicing heated oxygen sensor on exhaust pipe, remove heated oxygen sensor-to-exhaust pipe retaining nuts, heated oxygen sensor and gasket from exhaust pipe.
- To install, reverse removal procedure. Use NEW gasket and NEW heated oxygen sensor-to-exhaust pipe retaining nuts when installing heated oxygen sensor on exhaust pipe. Tighten heated oxygen sensor or heated oxygen sensor-to-exhaust pipe retaining nuts to specification. See TORQUE SPECIFICATIONS .