Tachometer Check
- Attach an external high quality tachometer to the engine speed detection connector on the harness side (such as with a paper clip).
- 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
NOTE:
For tachometer check, use an external high quality inductive tachometer.