how do you tell the missing coilpac spark plug lead in car engine?

Question

i have a six cylinder 1994 nissan laurel [C34} with coilpac spark plug leads.When engine gets hot,it then misses.Any cheap way of d i y?
prod leads etc. when engine starts to miss?

Answer 1

The easiest way to check the coil pack when it is hot is to have a timing light with you and when it starts to Miss pull over and take out the timing light and put your ground leed on the neg side of the battery and then take the hot leed and go from spark plug wire to wire until you find the one that isn't lighting the timing light and that my friend is the coil that isn't working.

Answer 2

if your careful start the car and get it hot. turn off the car and pull all the wires off the pack and just set them on the pins start the car again and pull reach wire off. the one that DOES NOT change the sound of the engine is your faulty one.