97 mustang 2.3 with a t-5 trans, once the engine gets to operating temperature it idles at 3000 rpm's, noCEL light. Any ideas?

im sorry... a 97 2.3l Mustang you say? Or did you mean 87? lol.

You could have a vacuum problem.

It's supposed to be 87 (I wish they made keyboards with bigger keys), no vacuum leaks done went through that check already. Just found a couple of simular threads on the same problem that had good results,going totry them out later today.