P0500 keeps coming back!
 

I have a 2005 civic LX with standard transmission the VSS engine code(P0500) keeps coming back, i checked the connector that plugs into the speed sensor and it is in good condition, i then replace the sensor new from autozone but that only lasted a week before the code comes back while driving and the speedometer would just drop to 0 at any speed it wants to throwing the engine light on again. I erase the code and it will run normal again for a few days, everytime it comes back i noticed the cruise control light flickers and the arm in the speedometer goes up and down before dropping to 0 turning the engine light on. Need help please