I was driving down the road the other night when my Altima started to sputter and lose power it then proceeded to drop in power completely it showed my RPM's going up but was only going as if it were simply in Drive and had no gas being given to it. I pulled over at a Walmart and it shut off when I tried to start it back up the engine won't turn over completely I can get it almost there if I flood it with gas but then it shuts off when I try to switch gears. I'm assuming the timing went out on it because I already felt the timing going. It's not overheating or leaking any oil at all. Anyone have any Ideas what the issue may be please?