The Air Fuel Ratio Sensor needs installation first before proceeding with the exhaust manifold setup. You should install the No. 2 exhaust manifold heat insulator using a bolt tightened to 25 Nm (250 kgf-cm, 18 ft-lbf). Use a new gasket to cover the cylinder head before securing the exhaust manifold assembly with 5 nuts according to sequence and torque them to 35 Nm (357 kgf-cm, 26 ft-lbf). Proceed with installing the plate and bolt it to the manifold before tightening until it reaches 25 Nm torque (250 kgf-cm and 18 ft-lbf). Connect the No. 2 manifold stay using a bolt with nut combinations that must be torqued to 43 Nm. Attach the wire harness bracket with a single bolt torqued to 12 Nm. Finally set the manifold stay into place with a bolt and nut which should be torqued to 43 Nm (438 kgf-cm, 32 ft-lbf). Before installing the front
Exhaust Pipe assembly verify the compression spring's free length using a vernier caliper because it needs to measure 41.5 mm (1.64 in.)+ immediately replace if the length is less than required. Using a plastic hammer together with a wooden block properly place a new gasket into the exhaust manifold assembly before checking for correct installation without reusing or damaging the component. Insert a second new gasket to the front exhaust pipe before securing it with 2 compression springs and 4 bolts that need torquing up to 48 Nm (489 kgf-cm, 35 ft-lbf) and 56 Nm (571 kgf-cm, 41 ft-lbf) respectively. Finally connect the clamp and connector. Lastly, attach the 3 clips before screwing the front floor cover LH with its 2 screws and 4 bolts. This process requires the under No. 1 engine cover to be installed afterward.