Mitsubishi Outlander 2003-06

Manifold Absolute Pressure Sensor

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Operation



A 5-volt voltage is supplied to the Manifold Absolute Pressure (MAP) Sensor power terminal from the PCM. The ground terminal is grounded through the PCM. A voltage that is proportional to the intake manifold pressure is sent to the PCM the sensor output terminal.

Removal & Installation



  1. Disconnect the negative battery cable.
  2.  
  3. Detach the electrical connector at the sensor.
  4.  
  5. Remove the sensor.
  6.  
  7. Installation is the reverse of the removal procedure.
  8.  

Testing



  1. Disconnect the MAP sensor connector.
  2.  
  3. Turn the ignition switch to the "ON" position.
  4.  
  5. Measure the voltage between terminal No. 3 of the MAP sensor harness connector and ground. Voltage should be between 4.9 and 5.1 volts.
  6.  
  7. Measure the voltage between terminal No. 2 of the MAP sensor harness connector and ground. Voltage should be 0.5 volt or less.
  8.  
  9. Turn the ignition switch to the "LOCK" (OFF) position.
  10.  
  11. If any check above does not meet the specifications, check connectors and wiring between the sensor and ECM/PCM. Repair/replace as necessary. If ok, replace ECM/PCM.
  12.  
  13. If within specifications, reconnect the MAP sensor connector.
  14.  
  15. Turn the ignition switch to the "ON" position.
  16.  
  17. Measure the voltage between terminal No. 1 and ground by backprobing the MAP sensor connector. Voltage should measure 3.7 and 4.3 volts when altitude is 0 m (0 foot), 3.4 and 4.0 volts when altitude is 600 m (1,969 feet), 3.2 and 3.8 volts when altitude is 1,200 m (3,937 feet), 2.9 and 3.5 volts when altitude is 1,800 m (5,906 feet).
  18.  
  19. Turn the ignition switch to the "LOCK" (OFF) position.
  20.  
  21. If within specifications, check connectors and wiring between the MAP sensor and the ECM/PCM. If ok, replace the ECM/PCM.
  22.  
  23. If not within specifications, replace the MAP sensor.
  24.  

 
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