Before my engine got changed my alarm system worked, now after the engine change my alarm system isn’t working and there isn’t no power running to my door lock actuators when the ignition is off.

 

Hmm? Well I don’t think the alarm runs off vacuum power or anything that would involve replacing the engine. So just the alarm doesn’t work when you try set it off? Or does the horn not work? Does the doors lock when you use the keyless button? Does the alarm work when you hit the panic button? I need some specifics of the situation before I could offer any suggestions.