I have problem with this F-CON. We installed ecu with HKS harkness(car is - 300zx, engine - vq30dett). I have version 3.1 software and ecu communicates with notebook. But have problem. Engine not start . We checked ignition and all 6 sparkplug ignition in 1 tact. We do the JUMPER SWITCH SETING 5, POWER WRITER SETING is 1. All sensor, RPM, another temperature sensor, we see all in data monitor. What maybe? Where our mistake? Stock ECU ignition (without F-CON)each sparkplug work itself in a cycle, and engine start and work.:headvswal