Matt, is this a stick?? if so then you have a safety switch on the clutch pedal that won't let engine start unless this switch is closed. located at top of pedal , close to dash wires. can't miss it. IF it is a n automatic then your netural safety switch is loose or bad. put in netural and jiggle the auto shifter around and see if it will start, on that switch two points need to make contact to complete the circuit. so the car will start. hope this helps. Later Mark.