Dodge D150 1990 Service Manual page 736

Fig. 12 installing Fuel Injector Assembly
ing h o l e . D r i v e r ' s s i d e l o c a t i n g p i n i s 4 m m i n
diameter (Fig. 9).
(7) Repeat steps 1-6 w i t h other injector a n d cap.
(8) Press f i r m l y o n injector caps u n t i l flush w i t h
casting surface.
(9) Place injector hold-down clamp w i t h spacer on
rear portion o f caps, a l i g n i n g t h e holes i n clamp w i t h
pins on caps. (Fig. 8).
(10) I n s t a l l clamp screw. B e sure spacer i s i n place
(Fig. 8). B e c a u s e O - r i n g squeeze m a y c a u s e c a p s
t o l i f t up, p r e s s f i r m l y o n b o t h c a p s w i t h one
h a n d to e n s u r e c a p s a r e f l u s h w h i l e i n s t a l l i n g
c l a m p s c r e w . T i g h t e n screw u n t i l snug. T i g h t e n
screw t o 4 N*m (35 in-lbs) torque.
(11) Connect negative cable t o battery. Test for
leaks using D R B I I diagnostic tester. W i t h the k e y i n
the " R u n " position, use Special Functions " A S D Fuel
System Test", t o activate the fuel p u m p and pressur-
ize the system.
(12) Reinstall A i r Cleaner Assembly.
MANIFOLD ABSOLUTE PRESSURE SENSOR
SERVICE
(1) Remove v a c u u m hose a n d electrical connector
from sensor (Fig. 13).
(2) Remove sensor m o u n t i n g screws a n d remove
sensor (Fig. 13).
(3) Reverse t h e above procedure for i n s t a l l a t i o n .
Check the vacuum hose and electrical connections to
the sensor.
THROTTLE POSITION SENSOR (TPS)
Removal
(1) Disconnect b a t t e r y negative cable.
(2) Remove a i r cleaner.
(3) Disconnect 3 w a y connector a t t h r o t t l e position
sensor.
(4) Remove t h r o t t l e position sensor m o u n t i n g
screws.
Fig. 13 Servicing the MAP Sensor
(5) L i f t t h r o t t l e position sensor off t h e t h r o t t l e
shaft (Fig. 14).
THROTTLE POSITION
SENSOR (TPS) RR14G161
Fig. 14 Servicing Throttle Position Sensor
Installation
(1) I n s t a l l t h r o t t l e position sensor to t h r o t t l e body
w i t h t h e electrical connector positioned upward away
from t h e engine. T i g h t e n m o u n t i n g screws to 3 N»m
(27 in-lbs) torque.
(2) Connect 3 w a y connector a t throttle position
sensor.
(3) I n s t a l l a i r cleaner.
(4) Connect b a t t e r y cable.
IDLE SPEED CONTROL (ISC) ACTUATOR
Removal
(1) Remove a i r cleaner.
(2) Disconnect battery negative cable.
(3) Disconnect electrical connector.
(4) Remove ISC motor a t t a c h i n g nuts (Fig. 15).
(5) Remove t h e idle speed control actuator from the
bracket.