Does the engine crank over fairly good? Battery voltage at 12 volts may seem a little low. If you have a charger put it on for a few hours and try it then. If it runs make sure charging volts is about 13.6volts or that ammeter shows it is charging. I had a 12 volt battery that would drop to 9.5 volts when cranking, bought a new battery and solved my problem. I keep a trickle charger on, because only run the car once a week or sometimes once a month depending on the weather..
