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Your injectors are sized for your vehicle. You might get lucky and the other one will fit. Check the part numbers on each and see it there is a match. The port size on the injector may be different coming from the other engine so you need to check. Too big and you will flood the cylinder with fuel and waste gas. Too small and you might not combust and misfire and get check engine lights. The injector o-ring may not seat properly and allow fuel to leak out potentially causing an engine fire. Best to match injectors. You could always go to a junk yard and pull an injector out of another matching engine.
Spray some carb cleaner into the throttle body and see if it cranks. It may be getting fuel pressure without a control signal commanding the injectors open.
Do you electrical power? Are the head lights working? Are they as bright as they should be? If not check the battery. If they are does the engine crank when you try to start it? If not check the starter. If it does try spraying some starter fluid on the air filter. Try and start it again. If it then runs and shuts down after a second or two you have a fuel issue. Is the check engine light on? If it is you may a sensor related issue causing the engine to not start.
When you turn the ignition to ON, you should hear the fuel pump hum for a couple of seconds. If you can't hear it, check the fuel pump fuse..... check all fuses anyway.
when it is cold there is extra fuel going to the plenum chamber its like pulling a choke on a carby that is why it is running smooth but when engine gets hot it is back to normal supply of fuel and yours is not normal.one reason might be not enough pressure in the fuel rail due to defective fuel pump or pressure regulator or blocked fuel filter. it is best to check your fuel pressure first.
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