Ford 1996 Windstar Manual page 362

OBD II Drive Cycle
The following steps must be run in the order shown. If steps 2
through 9 are interrupted, repeat the preceeding step. Any safe
driving mode is acceptable between steps.
Always drive vehicle in a safe manner according to traffic
conditions and obey all traffic laws.
Start engine and drive until engine has reached normal
1.
operating temperature.
Idle vehicle for at least 80 seconds, then accelerate at part
2.
throttle to near 45 mph (70 km/h).
Drive to accumulate at least four (4) minutes in the range of
3.
30-45 mph (50-70 km/h). If stop and go conditions occur,
the accumulative time must be within the 30-45 mph
(50-70 km/h) range. No wide open throttle conditions
should be encountered.
Cruise and maintain a select speed in the range of
4.
30-40 mph (50-65 km/h) on a level road with throttle held
very steady for at least one (1) minute.
Decelerate and idle for at least 80 seconds.
5.
Accelerate to 55 mph (90 km/h) at 1/2 throttle.
6.
Decelerate at closed throttle for 10 seconds.
7.
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