Fuel Tank Differential Pressure Sensor Check

Required Special Tool: 

• MB991658: Test Harness Set

1. Remove the left rear seat cushion mounting bolts, and lift the left rear seat cushion and tie it to the head restraint.
   Fig 1: Locating Left Rear Seat Cushion Mounting Bolts

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
2. Cut the floor mat and then remove the service hole cover to gain access to the service hole.
   NOTE: Push the floor mat to find the notches and cut the floor mat along them.
   Fig 2: Identifying Service Hole Cover

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
3. Disconnect the fuel tank differential pressure sensor connector.
   Fig 3: Identifying 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 4: Measuring Voltage Between Terminal 1 And Ground

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
7. Connect the fuel tank differential pressure sensor connector.
   Fig 5: Identifying Fuel Tank Differential Pressure Sensor Connector

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
8. Install the service hole cover.

   Tightening torque: 1.5 ± 0.5 N.m (14 ± 4 in-lb) 

9. Install the floor mat into its original position.
   Fig 6: Identifying Service Hole Cover

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
10. Untie the left rear seat cushion, install it into its original position and tighten the mounting bolts to the specified torque.

    Tightening torque: 44 ± 10 N.m (33 ± 7 ft-lb) 

    Fig 7: Locating Left Rear Seat Cushion Mounting Bolts

    Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.