Matthew, Thanks for all the valuable information and links. I have been on a few of the Rover forums. My wife has also been very useful finding information and parts sources. She works from home. I tasked her to replace the MAF sensor today and clean the throttle body.

I am so glad I married a car girl! Were going to clear the codes and try to run the monitors again.
Asphaltgambler, I already had a 928. Fun car. I have had a few Audis as well. Mostly diesel. Yeah, glutton for punishment there too.
I'm also lucky to do most of my own work. Transmission rebuild was the exception.