If I remove the wires to the cold start, then is it open or closed?
Also, how can I tell if an injector is always on, full blast I have a lot of unburnt fuel, without removing the intake?
gracias

 

Un plugged its closed.

You can carefully check to make sure its capable of closing by taking it out of the plenum and putting it back on the fuel line leave it unplugged and jumper the fuel pump test connector to get pressure on rail. You want ot rig some sort of catch so if it does fire you don't spray fuel all over the place. That will tell you if its leaking.

Most cold start injector issues are with the timer circuit. Usually the sensor under the water neck.