So for amps there are a few ways to hook up the shunt to the electrical system, regardless of the engine type. But regardless, the first test is to disconnect the sensing wires from the shunt and connect them together. That should yield 0 amps. If you still see a non-zero value, then you should check and make sure that the wires are actually going to the pins that you think that they are. In this case, there's either something up with the wiring, or possibly EMS module is damaged. If you do get zero amps when you connect the wires, then there's more likely an issue with the shunt (rare, but not impossible, especially if there's any corrosion). Also, is the shunt one of ours?
