I have a 90 Acura legend L. It has 147,000 miles on it now. Recently the car warms up fine but it idles kind of high for ever it seems. Once it is run for like 20 minutes, it idles at like 9,000 rpm like normal. Would this be the automatic choke? Or a temp regulator? I am not sure. I just know that its wasting gas. Lol. Thanks for any guidance on this issue.