Go to Post #2 and this is how you do a base idle reset on a Mustang which will most likley be the same procedure on your Crown Vic.
Help me create the "Surging Idle Checklist"
Updated 05 July 2022 to add rough idle when cold and smooth idle when up to normal operating temperature. See the EGR tech information, section #15 for more help. Many of you are familiar with the "Cranks OK, but No Start Checklist for Fuel Injected Mustangs" checklist and the No Crank...