Mitsubishi Pajero Pinin. Manual — part 64
GDI –
Service Specifications
13A-5
SERVICE SPECIFICATIONS
Items
Standard value
Fuel pressure
High-pressure side MPa
4 – 6.9
Low-pressure side kPa
Approximately 324
Oxygen sensor output voltage (during revving) V
0.6 – 1.0
Oxygen sensor heater resistance (at 20
C)
Ω
Front
4.5 – 8.0
Rear
11 – 18
GDI –
Troubleshooting
13A-6
TROUBLESHOOTING
DIAGNOSIS FUNCTION
ENGINE WARNING LAMP (CHECK ENGINE LAMP)
If an abnormality occurs in any of the following items related
to the GDI system, the engine warning lamp will illuminate
or flash. If the lamp remains illuminated or if the lamp illuminates
while the engine is running, check the diagnosis code output.
However, the warning lamp will illuminate as bulb check for
five seconds whenever the ignition switch is turned to the
ON position.
Engine warning lamp inspection items
Code No.
Diagnosis item
–
Engine-ECU
P0100
Air flow sensor system
P0105
Barometric pressure sensor system
P0110
Intake air temperature sensor system
P0115
Engine coolant temperature sensor system
P0120
Throttle position sensor (1st channel) system
P0125
Feedback system
P0130
Oxygen sensor (front) system <sensor 1>
P0135
Oxygen sensor heater (front) system <sensor 1>
P0136
Oxygen sensor (rear) system <sensor 2>
P0141
Oxygen sensor heater (rear) system <sensor 2>
P0170
Abnormal fuel system
P0190
Abnormal fuel pressure
P0201
No. 1 injector system
P0202
No. 2 injector system
P0203
No. 3 injector system
P0204
No. 4 injector system
P0220
Accelerator pedal position sensor (1st channel) system
P0225
Throttle position sensor (2nd channel) system
P0300
Ignition coil (power transistor) system
P0301
No. 1 cylinder misfire detected
P0302
No. 2 cylinder misfire detected
P0303
No. 3 cylinder misfire detected
P0304
No. 4 cylinder misfire detected
Engine warning lamp
(check engine lamp)
GDI –
Troubleshooting
13A-7
Code No.
Diagnosis item
P0335
Crank angle sensor system
P0340
Camshaft position sensor system
P0403
EGR valve system
P0420
Catalyst malfunction
P0443
Purge control solenoid valve system
P1200
Injector driver system
P1220
Electronic-controlled throttle valve system
P1221
Throttle valve position feedback system
P1223
Communication line with throttle valve controller
P1224
Throttle valve control servo motor (motor 1st phase malfunction) system
P1225
Accelerator pedal position sensor (2nd channel) system
P1228
Throttle valve control servo motor (motor 2nd phase malfunction) system
P1515
Brake vacuum sensor system
NOTE
1.
If the engine warning lamp illuminates because of a malfunction of the engine-ECU, communication
between MUT-
II
and the engine-ECU is impossible. In this case, the diagnosis code cannot be read.
2.
After the engine-ECU has detected a malfunction, the engine warning lamp illuminates when the engine
is next turned on and the same malfunction is re-detected. However, for items marked with a “
”
in the diagnosis code number column, the engine warning lamp illuminates only on the first detection
of the malfunction.
As for P1220, P1221, P1223, P1224, and P1228, the engine warning lamp flashes. If malfunctions
are detected at the throttle position sensor (1st channel) and the throttle position sensor (2nd channel)
at the same time, or malfunctions are detected at the accelerator pedal position sensor (1st channel)
and the accelerator pedal position sensor (2nd channel) at the same time, the engine warning lamp
will flash.
3.
After the engine warning lamp illuminates, it will be switched off under the following conditions.
(1) When the engine-ECU monitored the power train malfunction three times* and met set condition
requirements, it detected no malfunction.
*:
In this case, “one time” indicates from engine start to stop.
(2) For misfiring malfunction, when driving conditions (engine speed, engine coolant temperature, etc.)
are similar to those when the malfunction was first recorded.
4.
Sensor 1 indicates the sensor mounted at a position closest to the engine, and sensor 2 indicates
the sensor mounted at the position second closest to the engine.
GDI –
Troubleshooting
13A-8
METHOD OF READING AND ERASING DIAGNOSIS
CODES
Refer to GROUP 00 – How to Use Troubleshooting/Inspection
Service Points.
DIAGNOSIS USING DIAGNOSIS 2 MODE
1.
Switch the diagnosis mode of the engine control unit to
DIAGNOSIS 2 mode using the MUT-
II
.
2.
Carry out a road test.
3.
Take a reading of the diagnosis code and repair the problem
location.
4.
Turn the ignition switch to OFF and then back to ON again.
NOTE
By turning the ignition switch to OFF, the engine-ECU
will switch the diagnosis mode from DIAGNOSIS 2 mode
to DIAGNOSIS 1 mode.
5.
Erase the diagnosis codes.
INSPECTION USING MUT-
II
DATA LIST AND
ACTUATOR TESTING
1.
Carry out inspection by means of the data list and the
actuator test function. If there is an abnormality, check
and repair the chassis harnesses and components.
2.
After repairing, re-check using the MUT-
II
and check that
the abnormal input and output have returned to normal
as a result of the repairs.
3.
Erase the diagnosis code memory.
4.
Remove the MUT-
II
, and then start the engine again and
carry out a road test to confirm that the problem has
disappeared.
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