You're using a Clymer manual perchance?
I'm not sure which coil is which but one runs the front cylinders and the other the rear.
You're using a Clymer manual perchance?- the coils are plug this way: 1 and 3 on the right top and bottom; and 2 and 4 on left top and bottom
do you have any idea of what it can be ?
thank you for your help