Thanks a bunch. I will check this out this weekend. Strange thing happened this morning with it. It was 13 degrees F. and the check engine light did not come on as it has done the past few weeks. However, there was very little power and took an effort to accelorate. It would miss intermittently at idle. After a while that cleared up and the light stayed off.

This car has a few miles on it but the interior, exterior and engine bay look like new. The engine normally runs so smooth and quiet, you cannot hear or feel it run. This problem it not like the normal car.

Again, thanks for all your help. It is appreciated.

One question, my mechanic (not really mine, just one I used once) also told me that there was an internal engine valve dealing with the EGR system. What could that be?