Hi Dan,

Not from personal experience, but from having paid attention to the electrical foibles of LH2.4 240s reported on the board, I am wondering if the ignition key source of battery, for the fuel and ignition circuits, is intermittent. A worn ignition switch.

It is hard to catch. Catching it means you have to know the chicken-egg relationship between the dash lights and the motor stalling: Do the dash lights come on because the motor stalled (alternator stopped turning) or do they come on because 15R section of the ignition switch stopped providing voltage to the speedometer, ECU, ignition coil, and gauges? There's little else on that circuit to use as a reference, e.g. backup lights and turn signals.

Of course, anyone whose diff sender wires have crapped out knows the VSS signal is not needed to run the car.

If you can't catch it, maybe you have a spare switch you can slap on. Pretty easy. Two screws, and I'm sure you can pull one blindfolded (which is pretty much the method here).
--
Art Benstein near Baltimore

A closed mouth gathers no foot.