Mitsubishi Eclipse / Eclipse Spyder (2000-2002). Service and repair manual - part 340
ON-VEHICLE SERVICE
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L ENGINE>
13B-559
<Right bank and left bank heated oxygen sensor (rear)>
1. Use scan tool MB991502, observe HO2S reading. If values
are unsatisfactory, or if the scan tool is not available, use the
following procedure:
(1) Disconnect the heated oxygen sensor connector and
connect special tool MD998464 to the connector on the
heated oxygen sensor side.
(2) Make sure that there is continuity [11
−
18 ohm at 20
°
C
(68
°
F
)
] between terminal 1 (red clip of special tool) and
terminal 3 (blue clip of special tool) on the heated oxygen
sensor connector.
(3) If there is no continuity, replace the heated oxygen
sensor.
(4) Warm up the engine until engine coolant is 80
°
C (176
°
F
)
or higher.
CAUTION
Be very careful when connecting the jumper wires;
incorrect connection can damage the heated oxygen
sensor.
(5) Use the jumper wires to connect terminal 1 (red clip) of
the heated oxygen sensor connector to the positive
battery terminal and terminal 3 (blue clip) to the negative
battery terminal.
(6) Connect a digital voltage meter between terminal 2 (black
clip) and terminal 4 (white clip).
2. While repeatedly revving the engine, measure the heated
oxygen sensor output voltage.
Standard value:
3. If the sensor is defective, replace the heated oxygen sensor.
NOTE: For removal and installation of the heated oxygen
sensor, refer to GROUP 15, Exhaust Pipe and Main Muffler
(
ENGINE
HEATED OXYGEN
SENSOR OUTPUT
VOLTAGE
REMARKS
When revving
engine
0.6
−
1.0V
If you make the air/fuel
ratio rich by revving the
engine repeatedly, a
normal heated oxygen
sensor will output a
voltage of 0.6
−
1.0 V.
AKX01624 AB
MB991316
HEATED
OXYGEN
SENSOR
EQUIPMENT
SIDE
CONNECTOR
BLUE
RED
AKX01625 AB
BLUE
JUMPER
WIRES
BLACK
RED
WHITE
MB991316