Hi all, I've got an issue with my tacho wiring and I'm not sure where to go next. I've got a 120y VB210 that had been running, but stalled at a set of lights (a leaking intake manifold gasket), and when I went to start it up again smoke started pouring out from behind the dash. I turned it off then put the ignition to On, the smoke started again. Pulled apart the dash and found the tacho inductive wire (the black and white wire that loops from ignition to the positive coil side) had totally fried on both sides of the loop. The wiring looks fine from where it plugs into the harness back, just the loop that goes into the odometer is well cooked.
Has anyone seen this happen? I've replaced some of the usual ignition components but haven't touched the wiring or the coil or anything. I was thinking maybe the ballast resistor, but if that was open, wouldn't that stop any current from going through the circuit when the ignition was at 'On'?
Any insight much appreciated!
Cheers,
Ronan