Acura 2011 TSX Sport Wagon - Manual (Page 310)

Emissions Testing Testing of Readiness Codes
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7. Select a nearby, lightly traveled major highway where you can maintain a speed
of 50 to 60 mph (80 to 97 km/h) for at least 20 minutes. Drive on the highway
in 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 cannot do this for a continuous 90 seconds because of traffic
conditions, drive for at least 30 seconds, then repeat it two more times (for a
total of 90 seconds).
8. Drive in city/suburban traffic for at least 10 minutes. When traffic conditions
allow, let the vehicle coast for several seconds without using the accelerator
pedal or the brake pedal.
9. Park the vehicle and leave the engine off for 30 minutes.
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