Bean Bandits Levin 'Globetrotter'

[Ivan141]

According to the manual there are 2 wires going to the injector+ side, ignition switched 12V, and a (probably thin) wire going from the injector+ to the ECU (voltage sensing pin?).
There should also be 2 wires going from injector- to the ECU, which are shown as being interconnected in the wiring diagram. We also know that these 2 injector grounds are interconnected inside the ECU PCB (you can find that somewhere on the forum).

Basically, the stock 4age uses batch fire and your investigation is very likely pointless. Must admit that it is odd that you can light up your LED with the battery disconnected. Might be due to some residual voltage left in capacitors on that (voltage sensing?) pin I mentioned earlier. An LED does not need much juice to light up, a regular small filament bulb might be a better tool since it will only light up with some decent current running through it.