Acura MDX 2024 Owner's Manual page 732

uuEmissions TestinguTesting of Readiness Codes
3.5 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 P . Increase the engine speed to 2,000 rpm, and hold it there
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for about 3 minutes.
6. Let the engine idle with your foot off the accelerator for 20 seconds.
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.
Do not use cruise control and perform the following when traffic allows.
When stopped before entering the highway, use paddle shifters.
During acceleration up to speed, target 5,500 to 6,500 engine rpm continuously
for at least 10 seconds.
Then shift to D range and drive for 90 seconds without moving the accelerator
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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.
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