When installing the heated oxygen sensor for the 4WD 2AZ-FE engine control the application of Special Service Tool: 09224-00010 leads to a torque setting of 40 Nm (408 kgf-cm, 30 ft-lbf) or 44 Nm (449 kgf-cm, 32 ft-lbf) when used without the tool. You need a torque wrench with a 300 mm (11.8 in.) fulcrum to reach the necessary 40 Nm (408 kgf-cm, 30 ft-lbf) torque value while using the 30 mm (1.18 in.) Special Service Tool which should be perpendicular to the torque wrench. Connect the heated oxygen sensor connector along with the wire harness grommet after this step. Perform the 2WD installation while using Special Service Tool: 09224-00010 with the same torque requirements. Exhaust gas leaks should be inspected as the last step.