THE TIGHTENING TORQUE OF THE SCREWS USED FOR MOUNTING THE INTAKE MANIFOLD SHUTTER VALVE MAY HAVE BEEN LOWER THAN THE SPECIFICATION, CAUSING ROUGH IDLING, NOISE AND/OR MALFUNCTION INDICATOR LAMP (MIL) ILLUMINATION TO ENGINE MISFIRING ADVERSELY AFFECTING THE EXHAUST EMISSIONS. EMISSION RECALL 3005C TO INSPECT THE INTAKE MANIFOLD SHUTTER AND VARIABLE TUMBLE. *TT