ok when im driving even normal and not racing my speedometer will drop to 0 and im still moving the check engine light comes on and it statrts to pull back on the car like the ecu is telling the car to shut down but then it will bounce back up i think it might be only when the engine gets hot cuz when i start the car and take off it works but its always when im moving it a honda prelude 2.0si 1990 its not a cable trans its a wire trans pls hell that check engine light is pissing me off

IT IS DEFINATLY WHEN THE ENGINE GETS GOT IT TURNS OFF LIKE A MINUTE OR TWO BEFORE THE FAN KICKS ON AND ITS NOT GROUNDING ON ANYTHING CUZ I CHECKED THE FAN MOTOR AND EVERYTHING AND THAT PICTURE DOESNT LOOK ANDYTHING LIKE MY TRANNY MY IS A MANUAL