Sorry, didn't realize you were over in Europe. In a pinch, or while you are holding out for the probe you want, the volt drop across the fuse really is effective, as long as there isn't a lot of other noise on the circuit. Its not quite as detailed as a current probe, simply because the scaling on snap on's scopes doesn't go low enough. For most diag work, this isn't a big deal as all you need to see is if the circuit is working, component is open, shorted or in the case of injectors or solenoids, that there is a pintle hump. You can also do the math to figure out exactly what your current draw is. Set your scaling to 100mV and your sweep to 200ms in order to see all the injectors at idle. You can use a trigger and shorten the sweep, or use the zoom feature to dial in on a problem injector. What you can also do, if you have identified a problem cylinder, is backprobe the ground side of the injector. You'll be able to see if it is pulling fully to ground, the inductive kick, and the pintle closing. Should help out if you are getting circuit codes.
