Mitsubishi MOTORS L200 1996, Руководство по ремонту

Страница: 561 / 1723

DIESEL FUEL <4D5-Step
III
> – Troubleshooting
13I-50
Terminal
No. Normal condition: Inspection conditions (engine status) Check item
88 Boost air temperature
sensor Ignition switch: ON
Intake air temperature:
0
_
C
3.2 – 3.8 V
Intake air temperature:
20
_
C
2.3 – 2.9 V
Intake air temperature:
40
_
C
1.4 – 2.0 V
Intake air temperature:
80
_
C
0.4 – 1.0 V
89 Crank angle sensor Engine: Idling (Use a digital voltage meter to check.) 0 V
↔
5 V
(repeat the change)
90 EGR valve position Engine: After warm-
i
th i
Idling under no load 2.3 – 3.3 V
sensor
g
ing up the engine
Engine is suddenly raced Momentarily drops from
voltage during idling
91 Neutral switch <A/T> Ignition switch: ON
(Engine stops) Set the selector lever to P
or N 0 – 1 V
( g )
Set the selector lever to D,
2, L, or R System voltage
Parking switch <M/T> Ignition switch: ON
(E
i t )
Parking brake: ON 0 – 1 V
g g
(Engine stops)
Parking brake: OFF System voltage
CHECK CHART FOR RESISTANCE AND CONTINUITY
BETWEEN TERMINALS
1. Turn the ignition switch to OFF.
2. Disconnect the engine-ECU connector.
3. Measure the resistance and check for continuity between
the terminals of the engine-ECU harness-side connector
while referring to the check chart.
NOTE
(1) When measuring resistance and checking continuity,
a harness for checking contact pin pressure should
be used instead of inserting a test probe.
(2) Checking need not be carried out in the order given
in the chart.
Caution
If the terminals that should be checked are mistaken,
or if connector terminals are not correctly shorted
to earth, damage may be caused to the vehicle wiring,
sensors, engine-ECU and/or ohmmeter.
Be careful to prevent this!
4. If the ohmmeter shows any deviation from the standard
value, check the corresponding sensor, actuator and
related electrical wiring, and then repair or replace.
5. After repair or replacement, recheck with the ohmmeter
to confirm that the repair or replacement has corrected
the problem.