2000 Mercury Mystique Owner's Manual - Page 185
2000 Mercury Mystique Manual
Page 185 highlights
Maintenance and care Relearning the idle function Because your vehicle's engine is electronically controlled, some control conditions are maintained by power from the battery. When the battery is disconnected or a new battery is installed, the computer must "relearn" its idle conditions before your vehicle can drive properly. To begin this process: 1. Put the automatic transaxle gearshift in P (Park). Put the manual transaxle gearshift in neutral. 2. Turn off all accessories and start the vehicle. 3. Let the engine idle for at least one minute. 4. The "relearning" process will automatically complete as you drive the vehicle. • If you do not allow the engine to "relearn" its idle, the idle quality of your vehicle may be adversely affected until the idle is eventually "relearned". • If the battery has been disconnected or if a new battery has been installed, the clock and preset radio stations must be reset once the battery is reconnected. 185