To replace the Camshaft Timing Chain and sprocket, begin by removing the #1 cylinder spark plug, the Camshaft cover, the Camshaft position (CMP) sensor, and the engine front cover. Rotate the Crankshaft clockwise until the #1 piston is at top dead center (TDC) on the compression stroke. Use Camshaft holding tool (J 44221) behind camshafts to release Timing Chain tension through tensioner shoe movement followed by shoe stabilization with a tee. Disassemble the vehicle by removing the exhaust Camshaft position actuator bolt then discarding the actuator followed by the intake Camshaft sprocket bolt then its sprocket before removing the Timing Chain and Crankshaft sprocket. For installation, ensure the #1 piston is at tdc with the Crankshaft sprocket pin straight up. Begin installation by mounting the Crankshaft sprocket and then the intake Camshaft sprocket. Ensure proper alignment occurs between the dark link Timing Chain segment and the intake Camshaft sprocket timing mark. Through the cylinder head opening feed the Timing Chain into position with the dark link facing the timing mark of the Crankshaft sprocket. Use the angle meter (J 45059) while installing a new intake Camshaft sprocket bolt to apply 80-degree torque in addition to 20 nm (15 lb ft). Before placing the exhaust Camshaft actuator in position advance the Camshaft actuator fully while synchronizing the dark link with the timing mark that appears on the actuator sprocket. To align the Camshaft use a 25 mm (1 in) wrench on its hex while installing the actuator onto the exhaust Camshaft with a new bolt tightened to 25 nm (18 lb ft) along with a 135-degree turn using an angle meter (J 45059). First remove the tee from the Timing Chain Tensioner after uninstalling the Camshaft holding tool (J 44221) and confirm that Timing Chain dark links match sprocket marks. Finally, reinstall the engine front cover, the Camshaft position (CMP) sensor, the Camshaft cover, and the #1 cylinder spark plug.