Try looking at the ignition amp, this is by the exhaust manifold on these models, it's a stupid place to have it due to the heat from the exhaust, as such these are common to fail, bearing in mind yours has been on fire it's most likely fried it, they don't like heat!

Don't know the sensor your talking about on the coil, I suspect it is in fact the supressor, although this is fitted into the ground side.

Also it's not a good idea to have your pump running constantly, in actual fact it is dangerous, as if you were to have an accident the pump would keep going, not good if fuel lines etc were fractured, hence why manufacturs do not do this in the first place

Martin