Mitsubishi Eclipse. Manual — part 264
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-549
STEP 15. Check connectors D-16 at intermediate
connector and D-18 at fuel tank differential pressure
sensor for damage.
Q: Are the connectors in good condition?
YES : Go to Step 16.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
STEP 16. Check the harness wire between intermediate
connector D-16 terminal 8 and fuel tank differential
pressure sensor connector D-18 terminal 3 for damage.
Q: Is the harness wire in good condition?
YES : Go to Step 17.
NO : Repair it. Then go to 22.
AC001787AD
CONNECTOR: D-16
AC103356
FUEL TANK
AD
CONNECTOR: D-18
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
AC001787AD
CONNECTOR: D-16
AC103356
FUEL TANK
AD
CONNECTOR: D-18
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-550
STEP 17. Check the harness wire between intermediate
connector D-16 terminal 6 and fuel tank differential
pressure sensor connector D-18 terminal 2 for damage.
Q: Is the harness wire in good condition?
YES : Replace the fuel tank differential pressure sensor.
Then go to 22.
NO : Repair it. Then go to 22.
STEP 18. Check the output circuit voltage at fuel tank
differential pressure sensor connector D-18.
(1) Remove the center exhaust pipe. (Refer to GROUP 15,
Exhaust Pipe, Main Muffler and Catalytic Converter
(2) Remove the fuel band assembly, tilt the fuel tank.
(3) Disconnect fuel tank differential pressure sensor connector
D-18.
(4) Use special tool (MB991658) to connect terminals 1, 2 and
3 of the disconnected sensor connector and those of the
harness side connector respectively.
(5) Turn the ignition switch to the "ON" position.
(6) Remove the fuel cap.
(7) Measure the voltage between terminal 1 and ground.
• Voltage should be between 2.0 and 3.0 volts.
(8) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the voltage normal?
YES : Remove the special tool and connect fuel tank
differential pressure sensor connector D-18. Then go
to Step 19.
NO : Replace the fuel tank differential pressure sensor.
Then go to 22.
AC001787AD
CONNECTOR: D-16
AC103356
FUEL TANK
AD
CONNECTOR: D-18
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
AC002081AB
MB991658
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-551
STEP 19. Check connectors D-16 at intermediate
connector and D-18 at fuel tank differential pressure
sensor for damage.
Q: Are the connectors in good condition?
YES : Go to Step 20.
NO : Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
STEP 20. Check the harness wire between intermediate
connector D-16 terminal 5 and fuel tank differential
pressure sensor connector D-18 terminal 1 for damage.
Q: Is the harness wire in good condition?
YES : Go to Step 22.
NO : Repair it. Then go to 22.
AC001787AD
CONNECTOR: D-16
AC103356
FUEL TANK
AD
CONNECTOR: D-18
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
AC001787AD
CONNECTOR: D-16
AC103356
FUEL TANK
AD
CONNECTOR: D-18
FUEL TANK DIFFERENTIAL
PRESSURE SENSOR
MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <2.4L>
13A-552
STEP 21. Using scan tool MB991958, check data list item
73: Fuel Tank Differential Pressure Sensor.
CAUTION
To prevent damage to scan tool MB991958, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991958.
(1) Connect scan tool MB991958 to the data link connector.
(2) Disconnect hose G from the evaporative emission canister
side, and plug the hose from which the pipes have been
disconnected.
(3) Turn the ignition switch to the "ON" position.
(4) Remove the fuel cap.
(5) Set scan tool MB991958 to the data reading mode for item
73, Fuel Tank Differential Pressure Sensor.
• The fuel tank pressures should be −1.5 to 1.5 kPa
(
−0.443 to 0.443 inHg.)
(6) Connect an evaporative emission system pressure pump to
the fuel filler neck, and apply pressure.
• The scan tool reading should increase.
(7) Turn the ignition switch to the "LOCK" (OFF) position. Then
disconnect scan tool MB991958.
Q: Is the scan tool reading within the specified value?
YES : This malfunction is intermittent malfunction. Refer to
GROUP 00, How to Use Troubleshooting/Inspection
Service Points
. Then go to Step 22.
NO : Replace the ECM <M/T> or PCM <A/T>. Then go to
Step 22.
AC303127
AB
MB991911
16-PIN
MB991827
MB991824
AC002036 AC
HOSE G
AC000186
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