2003 Honda Civic Q&A

2003 Honda Civic Question: my car produces noise or gives revs time to time itself even the car is in neutr

my car gives reve time to time when the car either is in neutral not moving or when it is moving too..it automatically gives revs and make noise as if the gas pedal is press and release press and release..any solution pls -
Answer 1
Please clarify , -