Thank you to all for the invaluable info about my problem with the cluster dilemma. I have changed wires and plugs, cleaned the IAC valve and now the engine completely smooth....but the idle speed is about 700RPMS. The engine sounds like it is laboring. I understand that the idle may need adjustment. Do I also reset the ECU? What are the steps to setting the new idle speed and when do I disconnect the IAC....and when do I reset the ECU?

 

Darryl,, why don't you start by giving us the year and model,,,,,,,,and what do you mean the engine sounds like laboring..
idle at around 700-750 rpm is correct ,, you also say car runs smooth. so again what is laboring ??

 

Im interested in how you "cleaned" that IAC valve. thats the valve on the back of the intake manifold right?