guess what it was? the 3rd coil that i put on did the trick. it all started with w new msd coil that the end terminal came loose on. advance wouldn't exchange it so as i was past thier 90 days.(by one day) they told me to cotact msd. which i did msd said that they are good for 1 year,all i needed to do was send the unit to them along with the receipt. they would send me a new one. only problem was i lost the reciept. advance couldn't get me a copy so i'm stuck with a paperweight. It is all red though so it reminds me to never buy msd again. yes i stopped the other parts that i had ordered. the new distributor. the m6al box ect. the coil i have now is an original ford part that was on my 185000 mile turbocoupe. A yes no more check engine lights,no misses, good idle, and power i need more power. we never have enough do we?