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Home >> Ford >> 1996 >> Probe GT, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Tests W/Codes - 2.5L >> Quick Test >> Drive Cycles >> Drive Cycle Mode 1
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Drive Cycle Mode 1

  1. 1)  Ensure no vacuum leaks exist. Warm engine to normal operating temperature. Turn off all accessories. Ensure idle speed and ignition timing are within specification.
  2. 2)  Turn ignition off. Set parking brake and block drive wheels. With transmission in Neutral (M/T) or Park (A/T), start engine.
  3. 3)  Increase engine speed approximately 1750 RPM and hold steady for 15 seconds. Increase engine speed and hold steady for 15 seconds at each of the following engine speeds: 2000, 2250, 3000, 3500, 4000, 4250, 4500, 4750, 5000, 5250 and 5500. These engine speeds have variance of 125 RPM.
  4. 4)  Release throttle and let engine idle. If cooling fan comes on while idling, continue idling for 30 seconds after cooling fan turns off.
  5. 5)  To verify if Mode 1 was successful, connect NGS scan tool and select PID/DATA MONITOR. Mode 1 PID should indicate ACTIVE. If Mode 1 procedure was carefully followed but not successfully completed, go to CIRCUIT TEST QC, to diagnose cause of Mode 1 failure.
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