by Visitor in La Vergne, TN on November 19, 2010
It's not about the mileage, but how do you drive it. You can drive your car for months and it still won't set the readiness if certain conditions won't meet.
Here is a typical Honda drive cycle. Try to drive it accordingly. Make sure the fuel level is between 1/4 and 3/4, otherwise EVAP test won't run.
Traffic conditions could have ruin your driving - in this case you need to do it again.
1. As soon as the engine starts, idle the engine in drive for two and a half minutes with the A/C and rear defrost on. (OBDII checks oxygen sensor heater circuits, air pump and EVAP purge.)
2. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. (OBDII checks for ignition misfire, fuel trim and canister purge. )
3. Hold at a steady state speed of 55 mph for three minutes. (OBDII monitors EGR, air pump, O2 sensors and canister purge. )
4. Decelerate (coast down) to 20 mph without braking or depressing the clutch. (OBDII checks EGR and purge functions.)
5. Accelerate back to 55 to 60 mph at half throttle. (OBDII checks misfire, fuel trim and purge again.)
6. Hold at a steady speed of 55 to 60 mph for five minutes. (OBDII monitors catalytic converter efficiency, misfire, EGR, fuel trim, oxygen sensors and purge functions.)
7. Decelerate (coast down) to a stop without braking. (OBDII makes a final check of EGR and canister purge.)