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If you want to understand, it's very simple, remove the chip from the injector, turn on the ignition and see which wire has 12V. There will be 12V only on one wire. And the second wire will control the injector. And for this, an LED with a resistor is suitable. That is, in this video I will show how to make the simplest tester for checking the wiring of fuel injectors #ChevroletAveo#AveoInjectors#InjectorElectricalCircuit Checking the electrical circuit of the coil (ignition module) • Checking the electrical circuit of the coil (m...