My baby Bonneville has an odd behavior, when you start it up in the morning when it's cold it just revs like crazy! up around 2K! If you put the ac on, it quiets the thing down a little. Once you drive for 5 minutes, if you put it in park, it idles normall at about 1.1K or whatever.
Check the error codes? Is it a choke? It's fuel injected, there is no choke! some sensor or other? How do you test this?
Help, my Bonnie lies over the tachdometer...
-b