hello everyone im new here, my name is roy i have a 2007 aveo and i have a question.

i bought the car back in july after my dodge neon was totaled the title says the title is a salvage title, evidently the car was in an accident and the airbag deployed, the air bag light is on and flashing, also the engine light is on, i took it to a place after buying it and the coil, spark plug wires and plugs needed to be changed, we did all that and i drove the car, the light never went off, i took it back and the mechanic hooked it back up to the diagnostics computer and nothing showed up said everything is good...... is there a fuse or something i might need to do?