Okay..i have a 92 civic hatch DX..okay everything is good but like when im driving and letting go the gas it starts too like decelerate like quick..whats wrong with that..also.. when i press the gas. i can feel a jerk when i hit a cerrtain number..It is automatic..i also have a question..how can i make my car have a nice sound. You know like that vrooomm sound..lol when u rev it like that..!!