On Vehicle Inspection

1. INSPECT INJECTOR OPERATION
- Check operation sound from each injector.
- With the engine running or cranking, use a sound scope to check that there is normal operating noise in proportion to engine speed.





- If you have no sound scope, you can check the injector transmission operation with your finger.

- If no sound or an unusual sound is heard, check the wiring connector, injector or injection signal from the ECM.