2002 MY OBD-II System Operation Summary - MotorCraftService.com

Typical 0.020” EVAP abort (fuel slosh) conditions for Phase 2:Change in load: > 20% for 0.040”Change in load: > 10% for 0.020”Change in tank pressure: > 1 “ H 2 O for 0.040”Change in tank pressure: > 1 “ H 2 O for 0.020”Change in fuel fill level: > 15% for 0.040”Change in fuel fill level: > 8% for 0.020”Number of aborts: > 20 (may be up to 255)Typical 0.020 EVAP monitor malfunction thresholds:P1450 (Excessive vacuum): < -8.0 in H 2 O over a 30 second evaluation time.P0455 (Gross leak): > -8.0 in H 2 O over a 30 second evaluation time.P0457 (Gross leak, cap off): > -8.0 in H 2 O over a 30 second evaluation time after a refueling event.P1443 (Gross leak, no flow): > -8.0 in H 2 O over a 30 second evaluation time with < 0.02 lb/min vapor flow.P0442 (0.040” leak): > 2.5 in H 2 O bleed-up over a 15 sec. evaluation time at 75% fuel fill.(Note: bleed-up and evaluation times vary as a function of fuel fill level).P0456 (0.020” leak): > 2.5 in H 2 O bleed-up over a 30 sec. evaluation time at 75% fuel fill.(Note: bleed-up and evaluation times vary as a function of fuel fill level)P0442 vapor generation limit: < 2.5 in H 2 O over a 100 second evaluation time.FORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 20 OF 66