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

Typical 0.040 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 second evaluation time at 75% fuel fill. (Note: bleed-upand evaluation times vary as a function of fuel fill level)P0442 vapor generation limit: < 2.5 in H 2 O over a 120 second evaluation timeJ1979 Mode $06 DataTest ID Comp ID Description Units$26 $00 Phase 0 Initial tank vacuum and minimum limit in H 2 0$26 $00 Phase 0 Initial tank vacuum and maximum limit in H 2 0$27 $00 Phase 2 0.040” cruise leak check vacuum bleed-up and maxthreshold$2A $00 Phase 4 Vapor generation maximum change in pressure and maxthreshold$2B $00 Phase 4 Vapor generation maximum absolute pressure rise and maxthresholdin H 2 0in H 2 0in H 2 0Conversion for Test IDs $26 through $2B: Take value, subtract 32,768, and then multiply result by 0.00195 toget inches of H 2 0. The result can be positive or negative.Note: Default values (-64 in H 2 0) will be display for all the above TIDs if the evap monitor has nevercompleted. If all or some phases of the monitor have completed on the current or last driving cycle, defaultvalues will be displayed for any phases that had not completed.FORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 15 OF 66