TTS & warm up reg

hi

anyone know where the power supply for thermo time switch and the warm up regulator come from or how to check the power supply to them using a test screwdriver ….mine when unplugged seem to make no diffrence to the car running (i have some starting up probs )

The TTS gets it's power from a cranking live which can be from teh starter motor or fuse box..

The WUR shares the same live feed of the fuel pump, bascally only on/live if the engine is running.

cheers mate will trace it back and see if i get a live