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1. Most OBD-II monitors will complete more readily using a steady foot driving style during cruise or acceleration modes. Operating throttle in a smooth fashion will minimize time necessary for monitor 2. Fuel tank level should be between 1/2 and 3/4 full, with 3/4 full being most desirable. 3. Evaporative monitor can only operate during first 30 minutes of engine operation. When executing the procedure for this monitor, stay in part throttle mode and drive in a smooth fashion to minimize fuel Drive Cycle Preparation 4) Install scan tool to Data Link Connector (DLC). Turn ignition switch to ON position. Cycle ignition 5) Using scan tool, access and monitor ECT, EVAPDC, FLI (if available), and TP MODE PIDs from 6) Start engine and allow to idle. DO NOT allow ignition switch to return to OFF position. Preparation For Monitor Entry 7) Allow engine to idle for 15 seconds. Drive vehicle at 40 MPH until ECT PID is at least 170°F (76.7° 8) If IAT PID is more than 40°F (4.4°C) and less than 100°F (37.8°C), go to next step. If not, continue 9) Drive vehicle at 40 MPH for 60 seconds. NOTE: For best results, follow each of the following steps as accurately as possible. NOTE: This step by-passes engine soak timer and resets OBD-II monitor status. WARNING: Strict observance of posted speed limits and attention to driving NOTE: This step allows engine warm-up and provides Intake Air Temperature NOTE: This step executes Heated Oxygen Sensor (HO2S) monitor. NOTE: This step executes EVAP monitor if IAT is more than 40°F (4.4°C) and less
2003 Ford Pickup F150 2003 ENGINE PERFORMANCE Self-Diagnostics - CNG, Flex-Fuel & Gasoline
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