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EVAP Repair Verification Drive Cycle

Drive Cycle Recommendations

NOTE: This procedure was created to clear the Ford P1000, inspection and maintenance (I/M) readiness code. When the ambient air temperature is below 40F (4.4C) or above 100F (37.8C), or the altitude is above 8,000 feet (2,438 meters), the EVAP monitor will not run. If the P1000 must be cleared in these conditions, the powertrain control module (PCM) must detect them once (twice on some applications) before the EVAP monitor can be bypassed and the P1000 cleared.

NOTE: Use a worldwide diagnostic system (418-F224), a New Generation STAR tester (418-F052), or equivalent.

  1. Most OBD II monitors will complete more readily using a steady foot-driving style during cruise or acceleration modes. Operating the throttle in a smooth manner will reduce the time needed for monitor completion.
  2. The fuel tank level should be between and full. It is best to keep the tank full.
  3. The evaporative monitor can only operate during the first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part-throttle mode and drive in a smooth manner to minimize fuel slosh.

    Drive Cycle Preparation

    NOTE: For best results, follow each of the following steps as accurately as possible.

    NOTE: This step bypasses the engine soak timer and resets OBD II monitor status.

  4. Install the scan tool. Turn the key ON with the engine OFF. Cycle the key off, then on. Select the appropriate vehicle and engine qualifier. Clear all diagnostic trouble codes (DTCs) and carry out a PCM reset.
  5. Begin to monitor the following PIDs: ECT, EVAPDC, FLI (if available) and TP MODE. Press Diagnostic Data Link, PCM, PID/Data monitor and record, press trigger to select each PID, then start.
  6. Start the engine without returning the key to the OFF position.

    Preparation for Monitor Entry

    It is important to strictly observe posted speed limits and pay close attention to driving conditions while running through the drive cycle that follows.

    NOTE: This step allows engine warm-up and provides intake air temperature (IAT) input to the PCM.

  7. Idle the vehicle for 15 seconds. Drive at 40 mph (64 km/h) until the ECT is at least 170F (76.7C).
  8. Is IAT above 40F (4.4C) and below 100F (37.8C)? If not, continue with the following steps but note that the EVAP Monitor Bypass portion of the drive cycle (Step 13) will be required to bypass the EVAP monitor and clear the P1000.

    NOTE: This step executes the heated oxygen sensor (HO2S) monitor.

  9. Cruise at 40 mph (64 km/h) for 60 seconds.

    NOTE: This executes the EVAP monitor if IAT is above 40F (4.4C) and below 100F (37.8C).

    NOTE: To initiate the monitor, TP MODE should equal PT, EVAPDC must be greater than 75%, and FLI must be between 15 and 85%.

    NOTE: Be sure to avoid sharp turns and hills.

  10. Cruise at 45 to 65 mph (72 to 104 km/h) for 10 minutes.

    NOTE: This step executes the ISC portion of the Secondary Air/CCM.

  11. Bring the vehicle to a stop. Idle with the transmission in DRIVE (for automatic transmission) or NEUTRAL (for manual transmission) for two minutes.

    Pending Code and EVAP Monitor Bypass Check

    NOTE: This determines if a pending code is preventing the clearing of P1000.

    NOTE: If the EVAP monitor is not complete and IAT was below 40F (4.4C) or above 100F (37.8C) temperature range in Step 8, or the altitude is above 8,000 feet (2,438 meters), the EVAP Monitor Bypass (Step 13) must be carried out.

  12. Using the scan tool, check for pending codes. Conduct normal repair procedures for any pending code concerns. Rerun any incomplete monitor.

    EVAP Monitor Bypass

    NOTE: This allows the bypass counter to increment to two.

    NOTE: Do not repeat Step 4.

  13. Park the vehicle for a minimum of eight hours. Repeat Steps 5 through 12.

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