A few days ago i was at a stop sign went thru it and started to accelerate. At this time i heard a clank like something locking up then the engine was off. I drifted to the side of the road got towed home at this point i used the key on off on off on to read the code p0340 replaced the cmp sensor and no luck. At this point my neighbor read my code with his OBD-II reader and it says p0700 im lost and have no clue where to go from here. Any ideas or help please i dont know what code to follow.

 

There is a shaft inside the planetary gearset in these transmissions that is notorious for breaking. Sounds like you're in the market for a new transmission.