Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1161

13A-24
Code No. P0130 Oxygen sensor (front) system
Inspection Range
D More than 3 minutes passed after completion of start of engine
D The engine coolant temperature is approximately more than 80_C.
D The engine speed is more than 1,200 r/min.
D The volumetric efficiency is 25% or more.
Evaluation Conditions
D When 5 V is applied to oxygen sensor (front) in engine-ECU while oxygen
sensor (front) output voltage is 0.2 V or less, the sensor output voltage is
4.5 V or more.
MUT-II Data list
D No. 11 Oxygen sensor (front)
(Refer to P.13A-102.)
NG
Check the following connector:
B-34
OK
Measure at the B-34 oxygen sensor
(front) connector.
D Disconnect connector to measure
at the harness side
D Resistance between terminal No.
2 and earth.
OK: Less than 2 Ω
OK
Measure at the B-34 oxygen sensor
(front) connector.
D Using the test harness
(MB998464), connect the
connector, and measure at the
pickup harness.
D Engine: After warm-up
(1) Voltage between terminal No. 2
and earth
OK: Less than 0.5 V
(2) Voltage between terminal No. 4
and the earth
D At rapid deceleration from 4,000
r/min
OK: 200 mV or less
D During rapid racing
OK: 600 - 1,000 mV
OK
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MPI -
Troubleshooting
OK
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
NG
Repair
NG
Check the following connector:
C-115
Check the harness between the
oxygen sensor (front) and
engine-ECU.
D Check for disconnection and
damage of the earth wire.
MUT-II Data list
D No. 11 Oxygen sensor (front)
(Refer to P.13A-102.)
Intermittent malfunction
(Refer to GROUP 00 - Points to Note
for Intermittent Malfunctions.)
(1) NG
Check the following connector:
C-115
Check the harness between the
oxygen sensor (front) and
engine-ECU.
D Check for damage of the earth
wire.
(2) NG
Check the oxygen sensor (front).
(Refer to P.13A-134.)
Check the following connector:
C-115
Check the harness between the
oxygen sensor (front) and
engine-ECU.
D Check for damage of the output
wire.
Probable cause
D Oxygen sensor (front) malfunction
D Oxygen sensor (front) circuit disconnection,
short-circuit, or connector contact defect.
D Engine-ECU malfunction
NG
OK
NG
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
Repair
Repair
Replace engine-ECU.
Repair
Repair
Replace the oxygen sensor (front).
Repair
Repair