Mitsubishi Electric Lancer Evolution-VII Workshop Manual page 1164

Code No. P0136 Oxygen sensor (rear) 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 the oxygen sensor (rear), the output voltage is more
than 4.5 V.
MUT-II Data list
D No. 59 Oxygen sensor (rear)
(Refer to P.13A-105.)
NG
Check the following connector:
D-22
OK
Measure at the D-22 oxygen sensor
(rear) 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 D-22 oxygen sensor
(rear) 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. 1
and the earth
D During rapid racing
OK: 0 and 600 - 1,000 mV
alternate.
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 (rear) and engine-ECU.
D Check for disconnection and
damage of the earth wire.
MUT-II Data list
D No. 59 Oxygen sensor (rear)
(Refer to P.13A-105.)
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 (rear) and engine-ECU.
D Check for damage of the earth
wire.
(2) NG
Check the oxygen sensor (rear).
(Refer to P.13A-135.)
Check the following connector:
C-115
Check the harness between the
oxygen sensor (rear) and engine-ECU.
D Check for damage of the output
wire.
Probable cause
D Oxygen sensor (rear) malfunction
D Oxygen sensor (rear) 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
13A-27
Repair
Repair
Replace engine-ECU.
Repair
Repair
Replace the oxygen sensor (rear).
Repair
Repair