I had a problem with the car that required clearing an emission error. The car has 6 internal emission tests that it must execute before the vehicle can pass the inspection emission readiness test. The test is very involved and took me 700 miles of driving before the final test completed. My driving is mostly highway and suburban. Be sure to run the car fully on gasoline so don't plug it in until you pass your emission test. You can verify your emission readiness using an OBDC II reader. Many auto parts stores will scan for free, just be clear that you are looking for emission readiness.
Run all tests on ½ to ¾ tank of gas
1. Drive at 40 MPH until ECT is at least 170° F .
2. Cruise at 40 MPH for up to 4 minutes.
3. Cruise at 45 to 65 MPH for 10 minutes
4. Drive in stop and go traffic conditions. Include five different constant cruise speeds:
from 25 to 45 MPH over a 10 minute period.
5. From a stop, accelerate to 45 MPH at 1/2 to 3/4 throttle.
Repeat 3 times.
6. Bring the vehicle to a stop. Idle with transmission in drive for 2 minutes.
7. Moderately accelerate to 50 MPH and cruise for at least 15 seconds.
Stop vehicle and repeat 40 MPH cruising for at least 30 seconds.
Stop for at least 20 seconds and repeat step five times.
8. From a stop, accelerate 65 MPH then decelerate at closed throttle until 40 MPH (no brakes).
Repeat this 3 times.
9. Park vehicle for a minimum of 8 hours. Repeat all steps
---- can take ~500 miles total ----
