Check Item | Data display | Check conditions | Check content | Test specification |
Injector | Drive time (at starting) | Engine: Cranking | 0°C (32°F) | Approx. 17 ms |
20°C (68°F) | Approx. 35 ms | |||
80°C (176°F) | Approx. 8.5 ms |
Drive time indicates the injector activation time when the supply voltage is 11V and the cranking speed is less than 250 rpm.
Check Item | Data display | Check conditions | Engine state | Test specification |
Injector | Drive time | ● Engine coolant temperature: 80 to 95°C (176 to 205°F) ● Lamps, electric cooling fan, accessory modules: All OFF ● Transaxle: Neutral (P range for vehicle with A/T) ● Steering wheel: Neutral | Idle rpm | 2.2 ~ 2.9 ms |
2,000 rpm | 1.8 ~ 2.6 ms | |||
Rapid racing | Increasing |
When engine coolant temperature is lower than 0°C (32°F), the ECM fires all four cylinders simultaneously.
When the vehicle is new (within initial operation of about 500 km [300 miles]), the injector drive time may be about 10% longer.
Check Item | Item No. | Drive content | Check condition | Normal state |
Injector ● Actuator test | 01 | No. 1 injector shut off | Engine: Idling after warm-up (Shut off the injectors in sequence during and after engine warm-up; checkthe idle condition) | Idle should become unstable as injector shuts off. |
02 | No. 2 injector shut off | |||
03 | No. 3 injector shut off | |||
04 | No. 4 injector shut off | |||
05 | No. 5 injector shut off | |||
06 | No. 6 injector shut off |
Using a stethoscope, check the injectors for clicking sound at idle. Check that the sound is produced at shorter intervals as the engine speedincreases.
Ensure that the sound from an adjacent injector is not being transmitted along the delivery pipe to an inoperative injector.
If a stethoscope is not available, check the injector operation with your finger. If no vibrations are felt, check the wiring connector, injector,or injection signal from ECM.
Disconnect the connector at the injector.
13 ~ 16Ω [at 20°C(68°F)] |
Connect the connector to the injector.
