Fuel Tank Differential Pressure Sensor Check

Required Special Tool: 

• MB991658: Test Harness Set

1. Remove the rear seat cushion assembly (Refer to REAR SEAT ASSEMBLY ) and turn up the floor carpet.
2. Remove the floor inspection lid (LH).
   Fig 1: Floor Inspection Lid (LH)

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Disconnect the fuel tank differential pressure sensor connector.
   Fig 2: Fuel Pump Module Connector And Fuel Tank Differential Pressure Sensor Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
4. Connect special tool MB991658 between the terminals of the disconnected connector.
5. Turn the ignition switch to "ON" position and measure the voltage between terminal 1 and ground.

   Standard value: 2.0 - 3.0 V 

6. If not within the standard value, replace the fuel tank differential pressure sensor.
   Fig 3: Connecting Special Tool MB991658 Between Terminals

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
7. Connect the fuel tank differential pressure sensor connector.
   Fig 4: Fuel Pump Module Connector And Fuel Tank Differential Pressure Sensor Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
8. Install the floor inspection lid (LH).
9. Return the floor carpet to the original condition and install the rear seat cushion assembly (Refer to REAR SEAT ASSEMBLY ).
   Fig 5: Floor Inspection Lid (LH)

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.