Chrysler 1991 Service Manual Supplement page 105

14 • 8 FUEL SYSTEM
I E N E R A & . D S A G K O S I S " - D I E § E L
INDEX
page page
. . 11
. . 11
On Board Diagnostics
11
Air Intake Heater
11
Throttle Position Sensor Test
10
KSB Solenoid
11
Visual Inspection
8
VISUAL INSPECTION
A visual inspection for loose, disconnected, or incor-
rectly routed wires and hoses should be made before
attempting to diagnose or service the fuel injection
system. A visual check will help find these condi-
tions. It also saves unnecessary test and diagnostic
time. A thorough visual inspection of the fuel injec-
tion system includes the following checks:
(I) Ensure that the battery connections are tight
and not corroded (Fig. 1).
Fig. 1 Battery Connections
(2) Ensure that the 60-way connector is fully en-
gaged with the engine controller. Verify that the con-
nector mounting screw is tight (Fig. 2).
(3) Ensure that the electrical connections at the air
intake heater relays (Fig. 3) are tight and not cor-
roded. •
(4) Inspect the starter motor and starter solenoid
connections for tightness and corrosion (Fig. 4).
(5) Verify that the electrical connectors are con-
nected to the charge air temperature sensor and air
temperature switch. Inspect the connectors for corro-
sion or damaged wires (Fig. 5).
(6) Verify that the electrical connector is connected
to the air temperature switch (Fig. 5).
ENGINE 60-WAY
J9114-234
Fig, 2 Engine Controller
HEATER
RELAYS
WELL
J9114-67
Fig. 3 Air Intake Heater Relays
(7) Verify that the Water-in-Fuel (W1F) sensor
electrical connector is connected to the sensor (Fig.
6). Inspect the connector for corrosion or damaged
wires.
(8) Place a drain pan under the drain tube (Fig. 6).
With the engine not operating, hold the drain open
until all water and contaminants have been removed
and clean fuel exits the drain. Dispose of mixture in
drain pan according to applicable regulations.
(9) Verify that the electrical connector is connected
to the fuel solenoid on the injection pump (Fig. 7). In-
spect the connector for corrosion or damage.