I am trying to troubleshoot a no start problem. I drove the car on Sunday. Monday would not start, It appears that I have no spark. I have tested the ignition coil and got .6 - .7 on the primary (manual says it should be .5). I got 6900 on the secondary (manual says 5k - 6k). Do you think these readings are far enough off to warrant replacing the coil. If not the coil, what else should I check?