Read automotive injector pulse


I want to read the injector pulse of a car, to be able to modify it and the use it to power another injector, to increase car performance......

The problem i think is that the ECU control the ground of the injector, and the injector is feed by a 12v source, i found that if i use the ground of the inyector, plug it to a leds end, and the other end of the led to a 5v source, the pulse can be seen in the led, hehehehehhe, but o dont know how is the next step..... how to read that pulse in the arduino, how do i send that led signal to the arduino???

Anyone has an idea??



Do a search for "MPGuino": you'll find lots of info on how people have interfaced injector pulses on many different vehicles to Arduinos.