when i turn the key, the car sounds like it will turn over but never does. i have to wait a try another tim (can take from 3 - 10 tries). I've done nothing to the car so everything should work fine. Also the car will randomly die. One instance is when i was merging at a jug-handle and i press the gas and then it just shut off. The shutting off part has only happened twice. But the not starting has become more frequent. The ecu is throwing a code 16 but there is no check engine light.

anyone know whats the problem?