help needed ive just fitted a 2.1 zvh in to my cabby with a s2 loom my problem is ive got no spark ive fitted a brandnew group a magneti merelli coil and when ignition is on im getting 12 plus volts at the positive side and 12 plus volts at the negitive side is this normal all the earths are good and thers no spark comeing from the ht lead the fuel relay cuts in and out as it should as well any help would be appreciated