Mitsubishi FUEL Manual page 228

13I-34
From the previous page
OK
Measure at fuel pressure sensor
connector B-101.
D Use test harness (MB991658) to
connect the connector, and
measure at the pick-up harness.
D 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
OK
Measure at engine-ECU connector
C-163 <M/T> or engine-A/T-ECU
connector C-175 <A/T>.
D Measure the voltage at the
engine-ECU terminal <M/T> or
engine-A/T-ECU terminal <A/T>.
D Engine: Idling
D Voltage between terminal 92
<M/T>, 93 <A/T> and earth
OK: 0.3 - 4.7 V
Code No. P0201 No. 1 injector system
Range of Check
D The engine speed is 4,000 r/min or less.
D The battery voltage is 10 V or more.
D The fuel cut operation or the injector operation (by carrying out the Actuator
Test) is not in progress.
Set Conditions
D The injector driver is not transmitting a injector open circuit check signal for
four seconds.
GDI -
Troubleshooting
(1), (3) NG
Check the following connectors:
(C-163, C-164) <M/T>, C-175 <A/T>
Check the harness wire between the
fuel pressure sensor connector and
the engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
(2) NG
Replace the fuel pressure sensor.
Check the trouble symptoms.
Check the following connectors:
C-163 <M/T>, C-175 <A/T>
Check the harness wire between the
fuel pressure sensor connector and
the engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
NG
Check the following connectors:
C-163 <M/T>, C-175 <A/T>
Check the harness wire between the
fuel pressure sensor connector and
the engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
OK
Check the following connectors:
C-163 <M/T>, C-175 <A/T>
Check the trouble symptoms.
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
OK
NG
NG
OK
NG
OK
NG
OK
OK
Probable cause
D Malfunction of No. 1 injector
D Open or short circuit in the No. 1 injector circuit or
loose connector contact
D Malfunction of engine-ECU <M/T>
D Malfunction of engine-A/T-ECU <A/T>
Repair
Repair
Repair
Repair