Originally Posted by Rev0351
I don't want to waste $55 on plugs that aren't bad and $100 on a coil pack. It doesn't make any sense that they would both go at the same time. Besides, the code is still showing for coil 3 who h is the one I replaced. All that I can think to do for now is borrow the wires from my dads mountaineer to be sure that's not the issue. Then switch the coil packs and check out what the codes read.
The coil pack might just be ur problem remember one coil pack per 4 cylinders. I would check the wiring diagram first to see if u have them all in correct order. And also to check if the coil pack for #3 is the same coil pack for #7.
1996 Mustang GT, 17x9 front and 17x10.5 cobra r replica rims, 255/40/17 front 285/40/17 rear at the moment,
o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.