SPEED
TROL CABLE
POWER DISTRI-
BUTION
CON-
CEN-
TER
RELAYS
14 - 38
FUEL SYSTEM
DIAGNOSIS AND TESTING (Continued)
(3) Open the Power Distribution Center (PDC).
Check for blown fuses. Ensure the relays and fuses
are fully seated in the PDC (Fig. 32). A label on the
underside of the PDC cover shows the locations of
each relay and fuse.
Fig. 32 Power Distribution Center
(4) Verify the throttle cable operates freely (Fig.
33).
Fig. 33 Throttle Cable—Automatic Transmission
THROTTLE
CABLE TRANSMISSION
KICKDOWN CABLE
FUSES
IDLE AIR CONTROL MOTOR
TPS
(5) Check the electrical connections at the idle air
control motor and throttle position sensor (Fig. 34).
Fig. 34 Idle Air Control Motor and Throttle Position
Sensor—Typical
(6) Check hose connections between the PCV
valve, vacuum port - intake manifold and the oil sep-
arator (Fig. 35).
Fig. 35 PCV Valve
PL
PCV VALVE
CONNECTION
CONNECTION TO INTAKE
TO
MANIFOLD
COVER
VALVE