1975 242 B20F

What resistance should I read across the terminals of my thermal time switch (TTS)?

Or to ask it another way:

If I measure the resistance from the one lead of my cold start injector thru the TTS to ground, how many ohms should I expect?

(I measeured 20 ohms directly across the TTS, too high?)



I know that there are different models of Bosch components used in differnet year cars but:

Is there a listing anywhere for the resistance expected for various components by year/engine type? (TTS, cold start injector, aux. air switch, warm up regulator, etc?)