I have a 98 impreza wagon. i replaced the water pump which obviously entails removing the timing belt. i took off the alternator for convenience also. I lined the paint marks on the cams and the arrow on the crank gear to 12:00 o'clock when putting it all back. the car doesn't turn over at all. nothing electrical no turn over, no radio, no nuttin. is there a sensor that detects that is so out off time that it wont allow it to turn over at all ?