(k) Temporarily install the 3 bolts holding the delivery pipe to the intake manifold. (l) Check that the injectors rotate smoothly. HINT: If injectors do not rotate smoothly, the probable cause is incorrect installation of O–rings. Replace the O–rings. (m) Position the injector connector upward. Connector Upward Rotate (n) Tighten the 3 bolts holding the delivery pipe to the intake manifold. Torque: 21 N·m (210 kgf·cm, 15 ft·lbf) 2. INSTALL ACTUATOR FOR ACIS (a) Install the actuator with the 2 bolts. Torque: 6.8 N·m (70 kgf·cm, 61 in.·lbf) (b) Inspect the intake air control valve. (See intake air control valve inspection in ACIS) Dark Gray 3. CONNECT INJECTOR CONNECTORS Connect the 6 injector connectors. HINT: The No.1, No.3 and No.5 injector connectors are dark gray, and the No.2, No.4 and No.6 injector connectors are gray. 4. CONNECT FUEL INLET PIPE TO DELIVERY PIPE Connect the inlet pipe with 2 new gaskets and the union bolt. Torque: 41 N·m (420 kgf·cm, 30 ft·lbf) 5. CONNECT FUEL RETURN PIPE TO FUEL PRESSURE REGULATOR Connect the return pipe with 2 new gaskets and the union bolt. Torque: 27 N·m (280 kgf·cm, 20 ft·lbf) 6. Except California: CONNECT VACUUM SENSING HOSE TO FUEL PRES- SURE REGULATOR Gray P12068