Simple process if you have smaller hands....
the module is located right above the oil filter. There should be four bolts that hold the module on, each coil is held on by two bolts. Your problem may either be a bad module OR a bad coil. If you want to know which one, you can have all these tested at AutoZone to help narrow your problem down. If you need more details ask jeffcoslacker, he's a genious and I'm learning lots from him