P1366 P1366 OBD Code Definition: P1366 Ignition Spare P1366 OBD Code Description: OBD Code P1366 Ignition Spare OBD Code P1366 IC Cylinder 6 Not Toggling AFter Enable OBD Code P1366 Intermittent Interruption In TDC 2 Sensor Circuit OBD Code P1366 Ignition spare OBD Code P1366 Ignition spare