My GF's van had a dead miss at ALL speeds as if the coil wire was removed and quickly replaced. Some times it was longer. She took it to All Tune, Firestone then the Ford Dealer. No one could find the problem. I removed the PCM and found 3 capacitors blown out. I went to radio shack and found replacement caps. After replacement, the van runs Smoooth! But it runs at a high idle. I tried another PCM and had the same results. I have checked and replaced rubber vacuum lines to no avail. Second, How do I bypass the RABS valve? Thanks in advance!