Mitsubishi 3000GT Service Manual page 432

INTAKE AND EXHAUST
REMOVAL SERVICE POINT
(A, THROTTLE BODY ASSEMBLY REMOVAL
Leaving the water hoses and vacuum hoses in their installed
positions, remove from the intake manifold plenum.
INSTALLATION SERVICE POINT
Install with the gasket protrusion positioned as shown.
Caution
If installed in an incorrect direction, idling failure or other
problems may occur.
INSPECTION
Cheek the following points; replace the part if a problem is
found.
INTAKE MANIFOLD PLENUM CHECK
(1) Check intake manifold plenum for defect or cracks. Re-
place if defective or cracked.
(2) Check load (negative pressure) of drain port. Clean if
required.