1998 Ford Expedition OBD-II not ready status

1998 FORD EXPEDITION
109,000 MILES • V8 • 4WD • AUTOMATIC
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AKIMZEY
  • MEMBER
  • 1 POST
After putting a new battery in, I get a not ready status on the evap, catylist, and egr. How can I reset this or how far will I have to drive it tell it resets itself????
Feb 11, 2009 at 11:18 AM
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DAVE H
  • ✓Experienced Mechanic
  • 13,383 POSTS
Drive in stop-and-go traffic with at least 4 idle periods (30 seconds each) while observing the status of the OBD-II monitor on the scan tool. If the Exhaust Gas Recirculation (EGR), Heated Oxygen Sensor (HO2S), Evaporative (EVAP) emission, secondary Air (AIR) (if applicable) or catalyst efficiency monitor have not completed, drive on the highway at a constant speed over 40 mph not to exceed 65 mph for up to 15 minutes. Heavy accelerations, sudden decelerations and wide open throttles are not recommended. If the scan tool sends out a three pulse beep at any time, the OBD-II drive cycle has completed.
Feb 11, 2009 at 11:47 AM
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