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1974 911 Warm up Regulator

Fuel System

Vehicle Information: Model: 911; Year: 1974; Body Type: Coupe; Total Mileage: 225,000;

There is no electrical power flowing to the on board heating element inside my warm up regulator.I've checked the relay and the circuit continuity. They appear normal. Strangely, the leads on the thermo/time provide a ground no mater the temperature of the engine. Would a faulty thermo/time switch prevent the warm up regulator from functioning correctly?By the way, the cold start valve does deliver fuel when the engine is cold. (I do not know if it would also spray into a hot if it is started with the hand throttle activated.)

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