Mitsubishi Pajero Pinin. Manual — part 71
GDI –
Troubleshooting
13A-33
Code No. P0190 Abnormal fuel pressure
Probable cause
Range of Check
Ignition switch: ON
Set Conditions
The sensor output voltage is 4.8 V or more, or 0.2 V or less for four
seconds.
Malfunction of of fuel pressure sensor
Open or short circuit in the fuel pressure sensor
circuit or loose connector contact
Malfunction of engine-ECU
Range of Check
The following conditions are detected temporarily after the engine has been
started.
(1) Engine speed: 1,000 r/min or more
(2) Fuel pressure: 2 MPa or more
Engine running
Set Conditions
The fuel pressure is 6.9 MPa or more, or 2 MPa or less for four seconds.
Malfunction of high-pressure fuel pump
Clogging of high-pressure fuel lines
This diagnosis code will also be output when air is trapped into the
high-pressure fuel lines (such as poor fuel level). In that case, the air can be
evacuated by operating the engine for at least 15 seconds at 2,000 r/min. After
the repair, use the MUT-
II
to erase the diagnosis code.
Air trapped due to poor fuel level
(2) NG
NG
Repair
OK
Check the harness wire between
the fuel pressure sensor connector
and the engine-ECU, and repair if
necessary.
OK
Transient malfunction
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)
NG
NG
Repair
OK
Measure at fuel pressure sensor
connector A-59.
Disconnect the connector, and
measure at the harness side.
(1) Voltage between terminal 1 and
earth (Ignition switch: ON)
OK: 4.8 – 5.2 V
(2) Resistance between terminal 3
and earth
OK: 2
Ω
or less
(1) NG
OK
Check the following connector:
C-18
NG
Repair
NG
Check the following connector:
C-18
NG
Repair
OK
Check the harness wire between the
fuel pressure sensor connector and
the engine-ECU.
NG
Repair
OK
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
To the next page
OK
Check the harness wire between the
fuel pressure sensor connector and
the engine-ECU.
NG
Repair
Check the following connector:
A-59
Measure at engine-ECU connector
C-18.
Measure the voltage at the
engine-ECU terminal.
Ignition switch: ON
Voltage between terminal 41 and
earth
OK: 4.8 – 5.2 V
Check the following connectors:
A-36, C-19
MUT-
II
Data list
74 Fuel pressure sensor (Refer to
13A-94, DATA LIST
REFERENCE TABLE.)
GDI –
Troubleshooting
13A-34
NG
(2) NG
OK
(1) NG
Check the following connector:
C-18
From the previous page
OK
Check the harness wire between
the fuel pressure sensor connector
and the engine-ECU, and repair if
necessary.
Replace the fuel pressure sensor.
Check the trouble symptoms.
Check the following connector:
C-19
NG
Repair
NG
Check the harness wire between
the fuel pressure sensor connector
and the engine-ECU, and repair if
necessary.
OK
Measure at engine-ECU connector
C-19.
Measure the voltage at the
engine-ECU terminal.
Engine: Idling
Voltage between terminal 92 and
earth
OK: 0.3 – 4.7 V
NG
Check the following connector:
C-19
NG
Repair
OK
Check the harness wire between
the fuel pressure sensor connector
and the engine-ECU, and repair if
necessary.
OK
Check the following connector:
C-19
NG
Repair
OK
Check the trouble symptoms.
OK
Replace the engine-ECU.
OK
Repair
NG
(3) NG
Check the following connectors:
A-36, C-19
OK
Check the harness wire between
the fuel pressure sensor connector
and the engine-ECU, and repair if
necessary.
Repair
Measure at fuel pressure sensor
connector A-59.
Use test harness (MB991658) to
connect the connector, and
measure at the pick-up harness.
Engine: Idling
(1) Voltage between terminal 1 and
earth
OK: 4.8 – 5.2 V
(2) Voltage between terminal 2 and
earth
OK: 0.3 – 4.7 V
(3) Voltage between terminal 3 and
earth
OK: 0.5 V or less
Code No. P0201 No. 1 injector system
Probable cause
Range of Check
The engine speed is 4,000 r/min or less.
The battery voltage is 10 V or more.
The fuel cut operation or the injector operation (by carrying out the Actuator
Test) is not in progress.
Set Conditions
The injector driver is not transmitting a injector open circuit check signal
for four seconds.
Malfunction of No. 1 injector
Open or short circuit in the No. 1 injector circuit
or loose connector contact
Malfunction of engine-ECU
GDI –
Troubleshooting
13A-35
NG
Check the following connector:
A-78
NG
Repair
OK
NG
Repair
MUT-
II
Actuator Test
01 No. 1 injector
OK: The idling condition should
change.
OK
Check the trouble symptoms.
OK
Transient malfunction
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)
NG
Replace the injector driver.
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
Measure at intermediate connector
A-78.
Disconnect the connector and
measure at the harness side.
Resistance between terminals 1
and 2
OK: 0.9 – 1.1
Ω
NG
Check the following connector:
A-61
NG
Repair
OK
Replace the No. 1 injector.
OK
Check the following connector:
A-55
NG
Repair
OK
Check the harness wire between
the injector driver and the
intermediate connector.
NG
Repair
OK
Check the following connector:
C-17
NG
Repair
OK
Check the harness wire between the
injector driver and the engine-ECU.
NG
Repair
OK
Use an analyzer to measure the
signal waveform at engine-ECU
connectors C-17 and C-19.
Engine: Idling
Voltage between terminal 1 and
earth
OK: A normal waveform should
be displayed as described
on P.13A-84* (INSPEC-
TION PROCEDURE US-
ING AN ANALYZER).
NG
Check the following connector:
A-61
OK
Check the following connector:
A-61
NG
Repair
NG
OK
OK
Check the harness wire between
the No. 1 injector and the
intermediate connector.
NG
Replace the engine-ECU.
Repair
Repair
Check the harness wire between
No. 1 injector and the intermediate
connector.
OK
Check the harness wire between
No. 1 injector and the intermediate
connector.
NG
Repair
OK
Check the trouble symptoms.
NG
Replace the injector driver.
Replace the No. 1 injector.
NOTE
*:
Refer to the ’00 PAJERO PININ Workshop Manual (Pub. No. CKRE00E1)
GDI –
Troubleshooting
13A-36
Code No. P0202 No. 2 injector system
Probable cause
Range of Check
The engine speed is 4,000 r/min or less.
The battery voltage is 10 V or more.
The fuel cut operation or the injector operation (by carrying out the Actuator
Test) is not in progress.
Set Conditions
The injector driver is not transmitting a injector open circuit check signal
for four seconds.
Malfunction of No. 2 injector
Open or short circuit in the No. 2 injector circuit
or loose connector contact
Malfunction of engine-ECU
NG
Check the following connector:
A-78
NG
Repair
OK
NG
Repair
MUT-
II
Actuator Test
02 No. 2 injector
OK: The idling condition should
change.
OK
Check the trouble symptoms.
OK
Transient malfunction
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)
NG
Replace the injector driver.
Check the trouble symptoms.
NG
Replace the engine-ECU.
OK
Measure at intermediate connector
A-78
Disconnect the connector and
measure at the harness side.
Resistance between terminals 3
and 4
OK: 0.9 – 1.1
Ω
NG
Check the following connector:
A-62
NG
Repair
OK
Replace the No. 2 injector.
OK
Check the following connector:
A-55
NG
Repair
OK
Check the harness wire between
the injector driver and the
intermediate connector.
NG
Repair
OK
Check the following connector:
B-17
NG
Repair
OK
Check the harness wire between the
injector driver and the engine-ECU.
NG
Repair
OK
Use an analyzer to measure the
signal waveform at engine-ECU
connectors C-17 and C-19.
Engine: Idling
Voltage between terminal 9 and
earth
OK: A normal waveform should
be displayed as described
on P.13A-84* (INSPEC-
TION PROCEDURE US-
ING AN ANALYZER).
NG
Check the following connector:
A-62
OK
Check the following connector:
A-62
NG
Repair
OK
To the next page
NG
OK
OK
Check the harness wire between
the No. 2 injector and the
intermediate connector.
NG
Replace the engine-ECU.
Repair
Repair
Check the harness wire between
No. 2 injector and the intermediate
connector.
NOTE
*:
Refer to the ’00 PAJERO PININ Workshop Manual (Pub. No. CKRE00E1)
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