You should ensure that the marks on the
Camshaft position actuators and the timing chain are aligned, locate the camshafts to the cylinder head and assemble the camshaft actuators to the camshafts, install the camshafts and the camshaft bearing caps, remove the EN-48313, install and tighten the camshaft position actuators, install the intake camshaft position actuator solenoid, the camshaft sensors, the camshaft cover and the upper intake manifold with the lower intake manifold.