the meter am using is a good one i got it from work i am getting a spark on plug 4 but it will not spark to the others!

i thought the voltage from the crank sensor is about 2vac and the same from the phase sensor but i think its about 4.5vac from that???? i got this of a post secs,

when i just use the HT lead to see how strong the spark is its fine, but it must not be strong enough to transfer to the leads??? does that make sense!!!