Could engine run only with the additional injector for cold start ?, Engine started when cold then stopped, no way to start again Options

[CheeRS]

Hi, Today I started my 2.0GB engine after a failure in may.
The engine started fine once I turned the key.
very slow idle but no smoke, no smell, no strange noises.
After running a few minutes, the engine stopped and impossible to start again.
No fuel smell, I was alone in the garage so difficult to test ignition.

No time to wait if the engine will start again when cold, but I have a question :

Could engine start and run (without driving the car) only with the cold start injector ?

Thanks

Fred from Paris

[GregAmy]

The auxiliary air valve has a bimetallic spring. When engine is cold the valve is open, allowing air to idle up the engine. When you turn on the ignition the bimetallic gets 12V power, starts to heat up, and the air valve gradually closes, reducing the idle. That air valve bimetallic is constantly powered by 12V as long as the key is on.

The cold start valve is different: it is powered by the start circuit. The injector only opens and releases fuel when the key is in the start position. When you release the start and go to "on" there's no longer any power to it and the valve closes.

The thermo switch is on the ground circuit for the cold start injector. If the temperature is above a certain level - 40s Farenheit as I recall - then that circuit does not ground and the cold start valve is not actuated at all.