Mitsubishi Outlander XL. Manual - part 269
STEP 3. Check the left bank heated oxygen sensor (front).
(1)
Disconnect the left bank heated oxygen sensor (front)
connector B-14 and connect test harness special tool,
MD998464 to the connector on the left bank heated oxygen
sensor (front) side.
(2)
Warm up the engine until engine coolant temperature
reaches 80°C (176°F) or higher.
(3)
Rev the engine for 5 minutes or more with the engine speed
of 4,500 r/min.
ZK604080
Heated
oxygen
sensor
component
side
connector
MD998464
Black
White
AA00
(4)
Connect a digital voltage meter between terminal No. 2 (black
clip) and terminal No. 4 (white clip).
(5)
While repeatedly revving the engine, measure the left bank
heated oxygen sensor (front) output voltage.
Standard value: 0.6 - 1.0 volts
｠
Be very careful when connecting the jumper wires;
incorrect connection can damage the heated oxygen
sensor.
｠
Be careful the heater can be damaged it voltage beyond
8 volts is applied to the heated oxygen sensor heater.
NOTE:
If the sufficiently high temperature [of
approximate 400°C (752°F) or more] is not reached
although the heated oxygen sensor is normal, the output
voltage would be possibly low although the rich air/fuel
ratio. Therefore, if the output voltage is low, use a
jumper wire to connect the terminal No.1 (red clip) and
the terminal No. 3 (blue clip) of the heated oxygen sensor
with the positive terminal and the negative terminal of 8
volts power supply respectively, then check again.
Q:Is the voltage between 0.6 and 1.0 volts?
YES:
Go to Step 4.
NO:
Replace the left bank heated oxygen sensor (front).
Then go to Step 12.
STEP 4. Check for harness between the left heated oxygen
sensor (front) connector B-14 and the ECM connector B-10.
(1)
Disconnect the left bank heated oxygen sensor (front)
connector B-14 and the ECM connector B-10.
MULTIPORT INJECTION SYSTEM (MFI) <DIAGNOSIS>
13Ab-271
DIAGNOSTIC TROUBLE CODE PROCEDURES