For the "v4" kit that includes a current sensor for the AC line (the CR8450 coil with the 2 pin connector), be sure to leave enough extra length on ONE of your two AC input line wires so that you can fit the coil over the wire. Do not put this coil over both of the AC input line wires like you did for the GFCI sense coil -- you need to sense only one wire to measure the input current. If you put the coil over both wires, you'll get "Charging 0A" indication and no measurement of kWh used.
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For the "v4" kit that includes a current sensor for the AC line (the CR8450 coil with the 2 pin connector), be sure to leave enough extra length on ONE of your two AC input line wires so that you can fit the coil over the wire. Do not put this coil over both of the AC input line wires like you did for the GFCI sense coil -- you need to sense only one wire to measure the input current. If you put the coil over both wires, you'll get "Charging 0A" indication and no measurement of kWh used.