This weekend I fitted boost and EGT gauges to the Troll. The 2 wires from the probe are wrapped in a woven stainless steel sheath and come coiled up in the box. Whilst feeding the the probe wires through the plumbing adjacent the clutch M/C, the coiled sheath unravelled and touched the positive battery terminal. The SS sheath had 2 scorch marks but I soldiered on. When I went for a 5 minute test drive, nothing happened on the gauge. I disconnected the 2 probe wires and found there was continuity between them so I assumed the inner 2 wires had fused together at the 2 scorch points. I snipped the sheath back and found the wires were discoloured but not melted. I then separated the pairs of wires and checked for continuity again - which it had. So .... should there be continuity between these 2 wires when the probe is cold or should it be open circuit? i've checked the other wiring against the instructions and that all seems OK. The gauge even lights up when the parkers are switched on. Any advice anyone?