Honda CIVIC Hatchback 2022 Owner's Manual page 734

uuEmissions TestinguTesting of Readiness Codes
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
( D (continuously variable transmission) or 5th (manual). Do not use cruise
in
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 or 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.
2.0 L engine models
1. Fill the gas tank to approximately 3/4 full.
2. Park the vehicle and leave the engine off for 6 hours or more.
3. Make sure the ambient temperature is between 40°F and 95°F (4°C and 35°C).
4. Start the engine without touching the accelerator pedal, and let it idle for
20 seconds.
5. Keep the vehicle in
transmission). Increase the engine speed to 2,000 rpm, and hold it there for
about 3 minutes.
6. Let the engine idle with your foot off the accelerator for 20 seconds.
7. Drive in city or 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.
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( P (continuously variable transmission) or N (manual (