MSefi.com read only forum (Jan.15,2018)

I realized that my pickup that I made is actually reading the differential of the current, not actual current. If I could read actual current I could calibrate it to set the PWM current of the injector to the correct setting. I attempted to use the integrate math function of my scope and calibrate ...

I rigged up a DIY current probe (an old timing light clip on probe + adding ~30 turns of wire to the pickup) and monitored the current in my injectors with my scope. My goal was to deduce the opening time of my injectors and figure out the required PWM current. I -think- I'm seeing the opening event ...