Can your ignition coil stop your car from running while driving?

The coil boosts the 12 volts from your battery to tens of thousands of volts for your spark plugs, if it stops working, the car stops working. It however is controlled by your engine control module using input from things like the crankshaft position sensor. Find the coil pack, there will be thick wires going to each cylinder and several small connectors. Make sure they are all tight, but not while the engine is running, those tens of thousands of volts will sting you.