Mitsubishi Space Star. Manual — part 24
GDI –
Troubleshooting
13A-23
OK
Measure at throttle valve controller
connector B-15.
Measure voltage at the throttle
valve controller connector
terminals.
Ignition switch: ON
Voltage between terminal 7 and
earth
OK: Accelerator pedal fully re-
leased: 0.4 – 0.8 V
Accelerator pedal fully de-
pressed: 4.2 – 4.8 V
NG
Check the following connector:
B-15
NG
Repair
OK
Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.
OK
Check the following connector:
B-15
OK
Check the trouble symptoms.
NG
Replace the throttle valve controller.
From the previous page
NG
Repair
OK
Measure at throttle position sensor
connector A-66.
Use test harness (MB991536) to
connect the connector, and
measure at the pick-up harness.
Ignition switch: ON
(1) Voltage between terminal 1 and
earth
OK: 4.8 – 5.2 V
(2) Voltage between terminal 2 and
earth
OK: Accelerator pedal fully re-
leased: 0.4 – 0.8 V
Accelerator pedal fully de-
pressed: 4.2 – 4.8 V
(3) Voltage between terminal 3 and
earth
OK: 0.5 V or less
(1) NG
Check the following connector:
B-15
NG
Repair
(3) NG
OK
Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.
(2) NG
Adjust the throttle position sensor.
(Refer to P.13A-96*.)
Check the following connector:
B-15
NG
Repair
OK
Check the harness wire between
the throttle position sensor and the
throttle valve controller, and repair if
necessary.
NOTE
*:
Refer to the ’99 SPACE STAR Workshop Manual (Pub. No. CMXE99E1)
GDI –
Troubleshooting
13A-24
Code No. P0125 Feedback system
Probable cause
Range of Check
The engine coolant temperature is approx. 80
C or more.
During stoichiometric feedback control
The vehicle is not being decelerated.
Set Conditions
Oxygen sensor (front) output voltage has been higher or lower than 0.5 V
for at least thirty seconds.
Malfunction of oxygen sensor (front)
Open or short circuit in the oxygen sensor (front)
circuit or loose connector contact
Malfunction of engine-ECU <M/T>
Malfunction of engine-A/T-ECU <A/T>
GDI –
Troubleshooting
13A-25
Repair
OK
Measure at oxygen sensor (front)
connector A-55.
Disconnect the connector and
measure at the harness side.
Resistance between terminal 2
and earth
OK: 2
Ω
or less
NG
Check the following connectors:
B-87 <M/T>, B-86 <A/T>
NG
OK
Check the trouble symptoms.
Check the following connector:
A-55
NG
Repair
(2) NG
Check the oxygen sensor (front).
(Refer to P.13A-128.)
NG
Replace
OK
Check the harness wire between
the oxygen sensor (front) and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
NG
Repair
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Repair
OK
Measure at oxygen sensor (front)
connector A-55.
Use the test harness
(MD998464) to connect the
connector, and measure at the
pick-up harness side.
Engine: 2,500 r/min (after
warming up)
(1) Voltage between terminal 2 and
earth
OK: 0.5 V or less
(2) Voltage between terminal 4 and
earth
OK: 0 V and 0.8 V alternate.
(1) NG
Check the following connectors:
B-87 <M/T>, B-86 <A/T>
NG
OK
Check the harness wire between
the oxygen sensor (front) and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
OK
NG
Repair
OK
Check the harness wire between
the oxygen sensor (front) and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
OK
NG
Check the following connectors:
B-87 <M/T>, B-86 <A/T>
NG
OK
Check the harness wire between
the oxygen sensor (front) and the
engine-ECU <M/T> or
engine-A/T-ECU <A/T>, and repair if
necessary.
OK
Check the following connectors:
B-87 <M/T>, B-86 <A/T>
OK
Repair
NG
Check the trouble symptoms.
OK
Transient malfunction
(Refer to GROUP 00 – Points to
Note for Intermittent Malfunctions.)
NG
Replace the engine-ECU <M/T> or
engine-A/T-ECU <A/T>.
Repair
Check the following connectors:
B-87 <M/T>, B-86 <A/T>
Measure at engine-ECU connector
B-87 <M/T> or engine-A/T-ECU
connector B-86 <A/T>.
Measure the voltage at the
engine-ECU terminal <M/T> or
engine-A/T-ECU terminal <A/T>.
Engine: 2,500 r/min (after
warming up)
Voltage between terminal 71 and
earth
OK: 0 V and 0.8 V alternate.
GDI –
Troubleshooting
13A-26
Code No. P0130 Oxygen sensor (front) system
<sensor 1>
Probable cause
Range of Check
Three minutes have been passed since the engine has been started.
The engine coolant temperature is approx. 80
C or more.
Intake air temperature is 20 – 50
C
Engine speed is 1,200 r/min or more
Driving on a level surface at constant speed.
Set Conditions
The oxygen sensor (front) output voltage is 4.5 V or more when the sensor
output voltage is 0.2 V or less and a voltage of 5 V is applied to the
oxygen sensor (front) inside the engine-ECU.
Malfunction of oxygen sensor (front)
Open or short circuit in the oxygen sensor (front)
circuit or loose connector contact
Malfunction of engine-ECU <M/T>
Malfunction of engine-A/T-ECU <A/T>
Range of Check
Engine speed is 3,000 r/min or less
During driving
During air/fuel ratio feedback control
Set Conditions
The oxygen sensor (front) output frequency is five or less per 12 seconds
on average.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст