Repair Procedures: Inspection: Tachometer
- Connect the scan tool to the diagnostic link connector or install a tachometer.
- With the engine started, compare the readings of the tester with that of the tachometer. Replace the tachometer if the tolerance is exceeded.
CAUTION:
- Reversing the connections of the tachometer will damage the transistor and diodes inside.
- When removing or installing the tachometer, be careful not to drop it or subject it to severe shock.
REVOLUTION REFERENCE
| Revolution (RPM) | 1, 000 | 2, 000 | 3, 000 | 4, 000 | Engine |
|---|---|---|---|---|---|
| Tolerance (RPM) | ±100 | ±125 | ±150 | ±150 | Gasoline |
| Tolerance (RPM) | 5, 000 | 6, 000 | 7, 000 | 8, 000 | Engine |
| Revolution (RPM) | ±150 | ±180 | ±210 | - | Gasoline |