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Hi. I have a unit that after a possible fault in wiring show strange symptoms. The voltage in VEMStune is about 9 volt, but I have 12 volt on the supply pin. Also, one injector output, connected to fuel pump relay started to ground continuously on power on. I have measured the transistor and there is no short, the transistor seems fine. The problem must be from the CPU? We did noting when a got a NEW unit that one ignition coil were cracked and the spark did exit just by the connector. It is possible the spark can have entered the signal wire to the IGBT http://www.vems.hu/files/ThorbjornEngdahl/12208063_10207661719763613_600021320_n.jpg On this picture, by the pen, is that some form of 12v regulator/stabilizer? Could this be damaged? Is there something I could check or is it better to send this unit in for service?
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