Genuine Mitsubishi Diamante MAP Sensor

Mitsubishi Diamante MAP Sensor Parts Questions & Experts Answers

• MAP Sensor
  MD305600
  Q: What is the most important information for measuring engine fuel requirements and How to test the MAP sensor on Mitsubishi Diamante?

  A:

  The Manifold Absolute Pressure (MAP) sensor connected to the engine intake manifold and taking readings of absolute pressure is the most useful information to measure engine fuel needs. The PCM computes the mass of the intake air using pressure and temperature data. Based on the atmospheric pressure, which is measured at the engine's start-up and during the fully-loaded driving conditions, the pressure sensor information is weighted by the PCM. Use a multi-meter to test the MAP Sensor by back probing the sensor connector. With the key ON and the engine OFF, check for at least 4.8 volts between SIG and 6ND connectors. When voltage is unsatisfactory, take power and ground circuit checks. With the key ON and the engine ON, measure the voltage between GND and SIG RTN terminals. This voltage should read approximately in the range of 0.8 to 2.4 volts. If not, then the sensor is faulty. Upon verification of an acceptable voltage check suddenly depress the accelerator and observe the voltage as it rises and holds at 2.4 volts. If no, replace MAP sensor. To remove a MAP sensor, first disconnect the negative battery cable. Next, disconnect the connector from the MAP sensor. After that, remove the screws holding the sensor in place before lifting it straight up. Finally, remove the MAP sensor from the intake manifold. Installation is the reverse of removal.