Very few people in any profession rely on knowing people to give a reference, they look up what information they have on you on file and regurgitate it. Your final year project supervisor and your tutor (if you have one) will be the people to ask. Obviously the project supervisor is the important one. If you're applying before you've started your final year project, don't worry - it's not your fault and no one can hold this against you. Your course coordinator will be used to churning out references for his/her students all the time and so long as you turn up to the odd lecture, pass your exams and don't smell you'll get a passable reference.