![]() After completing the drive cycle, all the emissions monitors, include the EVAP monitor, were complete. In the morning, he followed the drive cycle procedure exactly. The drive cycle instructions must be followed exactly, or all the monitors may not run.Ĭonfirmed Repair: The technician let the vehicle sit overnight to ensure a cold soak. OBDII checks for ignition misfire, fuel trim and canister purge. Turn the A/C and rear defrost off, and accelerate to 55 mph at half throttle. OBDII checks oxygen sensor heater circuits, air pump and EVAP purge. Important: This drive cycle will terminate if engine RPM exceeds 3000 at any time, if road speed exceeds 60 mph, or if there are any fluctuations in throttle angle. 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. Idle engine in gear (Drive) for 5 minutes.Ī Tech-Assist consultant provided the drive cycle (shown above) that he believed would get all the monitors to run.
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