Hey, so my sister has a 2007 Nissan Sentra 2.0L. It has thrown the code for the crankshaft sensor several times. We have replaced the crankshaft sensor 3 times now. She was driving it and it started losing power and stuttering. She parked it and since then, it will crank but not start. We have replaced the fuel pump/filter, the crankshaft sensor (3 times now), the camshaft sensor, the throttle body/TPS sensor, and even the batteries in the key fobs. It still will not start. It is getting gas. We have checked all the fuses and relays. We think our next stop is either the computer or to see if it has jumped time. My dad has been a mechanic his whole life and he is at a loss for what it could be. Any been through this and can give us ideas? She hasn't had the car very long and is tired of sinking money into it when nothing is fixing it.