Originally Posted by taaboo

When the car dies at speed (does it at idle sometimes too), the tach definitely show the engine RPM - half the time I can coast and feather the accelerator and it will 'catch' and off we go, the RPM's fall with speed obviously. If I put it in neutral at speed, the tach will fall to zero of course.

Tech Forum searches indicate either the ignition module, coil, or maybe the temperature sensor may be a problem. The coil does not feel hot after the drive to work (if that's worth anything diagnostically), and the ignition module is portrayed as a "it either works or it doesn't" type of failure.
Brian