3.7L V-6

Fig 1: Identifying Manifold Absolute Pressure Sensor (3.7L V-6)

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

The Manifold Absolute Pressure (MAP) sensor (2) is mounted into the front of the intake manifold. 

1. Disconnect electrical connector at sensor.
2. Clean area around MAP sensor.
3. Remove two sensor mounting screws (1).
4. Remove MAP sensor from intake manifold.
   Fig 2: Identifying Manifold Absolute Pressure Sensor O-Ring

   Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
5. Check condition of sensor O-ring (2).