Ok, so i have the 98 catera back together. Engine light came on and the code read P0301, which is the #1 cylinder misfire. Checked the plug(Bran new) and swapped it with #3 plug. Still P301. Swapped #3 plug wire with #1 and still P301. That leads me to believe it is the coil pack....Is there anyway to test the coil pack before I up and buy a new one ??