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640 uu Emissions Testing u Testing of Readiness Codes Info rm ation 7. Select a nearby, lightly traveled major highway where you can maintain a speed ( D . Do not use cruise control. When traffic allows, drive for 90 seconds without moving the accelerator pedal. (Vehicle speed may vary slightly; this is okay.) If you 8. Drive in city or suburban traffic for at least 10 minutes. When traffic conditions 9. Park the vehicle and leave the engine off for 30 minutes. |