Welcome to AF! The crankshaft position sensor is your problem and needs replaced. It is located behind the harmonic balancer on the front of the engine. You will need either a large breaker bar or impact wrench to get the bolt out and then you will need a puller to remove the balancer. If you are not mechanically inclined you may want to have a mechanic change it out for you. As for the cam position sensor this engine does have one, it can be an issue but it doubt it in this case. If you are so inclined have it replaced at the same time as the crank sensor.