Thanks for all the info.
Last night replaced all the plugs and the #4 coil, did compression test which ranged from 120 to 150 psi. Cleaned the throttle plate. Started the car and in ran a little rough. Disconnected battery cable for 10 minutes. Restarted car and it runs smooth. Drove about 25 miles shutting down are restarting about five times. It accellerates smooth under hard and moderate accelleration and idles smooth. Seems to run great. The only problem now is the CATS fault is displayed. We disconnect the wire while working on the drivers side, which apparently throws a fault code that can only be cleared with a Jag code tool. I guess we wait and see if the car continues to run good.
Thats again.
