WHOSE PLUGS AND WIRES DID YOU USE , IF THEY ARE NOT THE FACTORY WIRES AND THE PLUGS RECCOMMENED, NGK, THIS MAY STILL BE THE PROB, ALLSO IF THE WIRES ARE CAUSING THE PROB, YOU COULD DAMAGE THE NEW COILS , IF THE WIRES ARE OPENING UP INTERMITTENTLY, THE AVAILABLE VOLTAGE FROM THE COILS CAN GO PRETTY HIGH IN AN OPEN CIRCUIT SITUATION AND THEY CAN THEN START ARCING ACROSS THE TOWERS OR INTERNAL ARCING, AND THIS IN TURN CAN DAMAGE THE IGN CONTROL BOARD THEY SIT ON, . MAKE CERTAIN THE PLUGS ARE GAPPED CORRECTLY .041 THOUS, AND THAT THERE IS NO OIL IN THE PLUG WELL AND INSPECT THE BOTTOM OF THE PLUG WIRES VERY CAREFULLY ..JERRY