Mercury 2002 Villager Owner's Manual page 230

Maintenance and Specifications
Readiness for Inspection/Maintenance (I/M) testing
In some localities, it may be a legal requirement to pass an I/M test of
the on-board diagnostics system. If your "Check Engine/Service Engine
Soon" light is on, refer to the description in the Warning lights and
chimes section of the Instrument Cluster chapter. Your vehicle may not
pass the I/M test with the "Check Engine/Service Engine Soon" light on.
If the vehicle's powertrain system or its battery has just been serviced,
the on-board diagnostics system is reset to a "not ready for I/M test"
condition. To ready the on-board diagnostics system for I/M testing,
follow the procedure described below:
1. Allow the engine to cool to ambient temperature (the engine coolant
temperature gauge indicator will point to C).
2. Start the engine and let it run until it reaches normal operating
temperature (the engine coolant temperature gauge indicator will be
near the center of the normal area between H and C).
3. Accelerate the vehicle to 88 km/h (55 mph), then quickly release the
accelerator pedal completely for at least six seconds.
4. Quickly depress the accelerator pedal for a moment, then drive the
vehicle at a speed of 86 to 96 km/h (53 to 60 mph) for at least five
minutes.
5. Bring the vehicle to a complete stop.
6. Accelerate the vehicle to 55 km/h (35 mph), and maintain the speed
for 20 seconds.
7. Repeat steps five and six at least three times.
8. Accelerate the vehicle to 88 km/h (55 mph), and maintain the speed
for at least three minutes.
9. Bring the vehicle to a complete stop and turn the engine off.
10. Repeat steps one through nine at least one more time.
If step one through eight are interrupted, repeat the preceding step. Any
safe driving mode is acceptable between steps. Once started, do not turn
off the engine until step seven is completed.
230