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Tachometer Check

WARNING: This page is about a different car, the 2004 Mitsubishi Eclipse. However, it is still accessible from the selected car via links, so may be relevant.
  1. Attach an external high quality tachometer to the engine speed detection connector on the harness side (such as with a paper clip).
    NOTE: For tachometer check, use an external high quality inductive tachometer.
    Fig 1: Checking Tachometer
    G03472829Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
  2. Compare the readings of the vehicle tachometer and the external tachometer at every engine speed, and check if the variations are within the standard values.

    Standard values: 

    700 r/min: 100 r/min 

    3,000 r/min: 150 r/min 

    5,000 r/min: 250 r/min 

    6,000 r/min: 300 r/min