1996 Mazda MPV Crankshaft Position Sensor, Mass Air Flow Sensor, Oxygen Sensor, Engine Control Module

Crankshaft Position Sensor, Engine Control Module, Mass Air Flow Sensor, Oxygen Sensor Installation and Repair Tips for 1996 Mazda MPV

• Q:

  What changes have been made to the designation of the Engine Control Module (ECM), and how is it removed and installed on 1996 Mazda MPV?

  A:

  The engine control unit (ECU) has since 1994 changed to Powertrain Control Module (PCM), although it performs the same functions. It is situated beneath the dashboard. Take off the battery, panels and the kick plate to complete the task of exposing the ECU. Be careful to avoid its exposure to the statics. The opposite of removal is installation.
• Q:

  How to check the voltage of a Mass Air Flow Sensor on 1996 Mazda MPV?

  A:

  Probe the airflow meter terminals (remove rubber boot), probe Black/white power lead; some tests require ignition ON. If readings are wrong inspect wiring. For burnoff disconnect the negative battery briefly, warm and run the engine, check G/O reads OFF then voltage; diagnose ECU or replace the airflow meter.
• Q:

  Where is the oxygen sensor located and how do you replace it on 1996 Mazda MPV?

  A:

  Oxygen sensor is found in the exhaust manifold. Beginning with the sensor, follow the wire to the connector, and then plug out. Take a wrench and remove the sensor of the manifold. Install the new sensor and ensure that it is well tightened and then reconnect electrical connector.
• Q:

  How to check and replace the Crankshaft Position Sensor on 1996 Mazda MPV?

  A:

  Unplug the electrical connector from the crank angle sensor. Check the resistance between the terminals with an ohmmeter. If not as specified, replace the sensor. Remove the distributor, mark alignment points, and lift the sensor out. For installation, align the marks, install the locknut, and check ignition timing.