I HAVE A 1991 DODGE RAM CHARGER, WHEN I’AM RIDING DOWN THE ROAD THE CHECK ENGINE LIGHT WILL COME ON AND WHEN THIS HAPPENS. WHEN I SLOW DOWN OR COME TO A STOP IT WILL SHUT OFFTHEN I WILL TURN THE KEY BACK AND CRANKTHE TRRUCK BACK UP. THEN IT WILL GO ON FOR A LITTLE BIT AND THEN THE CHECK ENGINE LIGHT COMEA ON AGAIN AND WHEN I SLOW DOWN OR COME TO A STOPIT WILL SHUT OFF AGAIN.THIS HAPPENS ALL DAY LONG IT DOES AS LONG AS THE CHECK ENGINE LIGHT IS NOT ON. COULD YOU PLEASE TELL ME WHAT THE PROBLEM MAY BE