I need help with my car

Hello, that sensor is given the ECU (computer) signal of the car, so that the injector opens or closes, but first receives another signal that is driven by a component called Step by step, it is located at the base of the carburetor, this captures the revolutions of the engine by means of another sensor that is in the engine steering wheel, (the engine steering wheel is between the speed box and the engine).
Returning to the motor step by step, when it captures the revolutions, it regulates the opening of the butterfly, and in turn send the signal to the ECU to inject more or less fuel.
I have explained it very briefly, but for you to have an idea.
If, when marching, it makes you contrast in the carburetor possibly the step by step, but it can be the sensor in the engine steering wheel that measures the revolutions. I hope you helped you greetings.

Hello, reading has posted it first, I would say that the first thing to repair is the cargo system (generation). Since the road problem was by loss of electric tension. Now before repairing the load system, nothing of the injection and ignition systems should not be mounted, because it is very caused that they are damaged (n with rayita above). Check motor rotation signal, on the computer, and all positive current inputs, if this is properly check the computer.