well this car is starting to get to me now

2weeks ago the turbo went on my car and i had to get a new one lucky enough i found a guy that rebuild and give you a warranty for a cheep 200pounds

that said iput in the turbo and when i went to start it it turns over and feels like it wants to start but there is a low level alarm which i have no idea what it is but the car wont fire up any ideas

meed help badly