Dodge D150 1990 Service Manual page 717

14 - 34 FUEL SYSTEM
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(18) V e r i f y t h a t t h e 3-way connector is attached to
t h e t h r o t t l e position sensor ( F i g . 13).
(19) V e r i f y t h a t t h e 3-way connector is attached to
t h e M A P sensor (Fig. 13).
(20) V e r i f y M A P Sensor V a c u u m Hose is attached
a t M A P sensor. (Fig. 13).
(21) V e r i f y t h a t 4-way connector is attached to Idle
Speed C o n t r o l (ISC) actuator ( F i g . 14).
(22) V e r i f y t h a t t h e 4-way connector is attached to
t h e harness for t h e f u e l injectors ( F i g . 14).
MAP
SENSOR
3-WAY ELECTRICAL
CONNECTOR
T O V A C U U M
SOURCE
8914-96
Fig. 13 Throttle Position Sensor and Map Sensor
IDLE SPEED CONTROL (ISQ
ACTUATOR
FUEL INJECTORS
ELECTRICAL CONNECTOR
' IDLE SPEED CONTROL (ISQ
ACTUATOR ELECTRICAL \ ^
CONNECTOR \
RR14G141
Fig. 14 Throttle Body Electrical Connections
(23) Verify t h a t v a c u u m connections on t h e front
and rear of T h r o t t l e Body are secure a n d n o t l e a k i n g
(Figs. 15 a n d 16).
(24) Verify t h a t heated a i r door a n d M A P sensor
vacuum connections are connected a n d n o t l e a k i n g
(Fig. 15).
(25) Verify t h a t hose f r o m P C V valve is securely
attached to t h e m a n i f o l d v a c u u m p o r t (Fig. 16).
(26) Verify t h a t t h e M A P sensor v a c u u m connector
is attached t o the v a c u u m p o r t a t t h e rear of t h e
t h r o t t l e body (Fig. 15).
CANISTER PURGE V A C U U M
C O N N E C T I O N
DIVERTER VALVE
N V A C U U M C O N N E C T I O N
8914-99
Fig. 15 Throttle Body Vacuum Connections—Front
BI-LEVEL PURGE A N D PCV V A C U U M C O N N E C T I O N
8914-100
Fig. 16 Throttle Body Vacuum Connections—Rear
(27) V e r i f y t h a t hoses are attached t o the E G R
valve back pressure transducer (Fig. 17).
T O V A C U U M
SOURCE
Fig. 17 EGR Valve and Transducer
(28) Verify t h a t 2-way connector is attached t o
Coolant Temperature Sensor (Fig. 18).