Note. If you don't have a special fuel injector tester, run «Fuel leak test», to check if the fuel injector is working.
Disconnect the negative battery cable.
Remove fuel injectors.
Connect the fuel injector to the fuel injector tester.
Measure the volume of fuel injected from each fuel injector using a graduated container. If the leakage is greater than normal, replace the fuel injector.
Volume of injected fuel:
- L3: 61–71 ml / 15 s;
- LF: 53–69 ml / 15 s;
- L8: 48–63 ml / 15 sec.
Turn the ignition key to the LOCK position and remove the jumper.
Reinstall the injectors.