2002 MY OBD-II System Operation Summary - MotorCraftService.com
2002 MY OBD-II System Operation Summary - MotorCraftService.com 2002 MY OBD-II System Operation Summary - MotorCraftService.com
leed-up criteria is exceeded on three successive monitoring events, a 0.040 “ dia. leak is likely and a final vaporgeneration check is done to verify the leak, phases 3-4. Excessive vapor generation can cause a false MIL.Phase 3 - Vacuum releaseThe vapor generation check is done by releasing any vacuum, then closing the VMV, waiting for a period of time,and determining if tank pressure remains low or if it is rising due to excessive vapor generationPhase 4 - Vapor generationIf the pressure rise due to vapor generation is below the threshold limit for absolute pressure and change inpressure, a P0442 DTC is stored.0.040” EVAP MonitorOperation:DTCsMonitor executionMonitor SequenceSensors/Components OKMonitoring DurationP0455 (gross leak),P1450 (excessive vacuum),P0457 (gross leak, cap off),P1443 (gross leak, no flow),P0442 (0.040” leak)once per driving cycleHO2S monitor completed and OKMAF, IAT, VSS, ECT, CKP, TP, FTP, VMV, CVS360 seconds (see disablement conditions below)Typical 0.040” EVAP monitor entry conditions, Phases 0 through 4:Entry condition Minimum MaximumEngine off (soak) time6 hoursTime since engine start-up 330 seconds 1800 secondsIntake Air Temp 40 o F 90 - 100 o FBARO ( 20%Change in tank pressure: > 1 “ H 2 OChange in fuel fill level: > 15%Number of aborts: > 20 (may be up to 255)FORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 14 OF 66
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
- Page 2: 4R70W (RWD) Transmission ..........
- Page 6 and 7: TYPICAL INDEX RATIO CATALYST MONITO
- Page 8 and 9: Misfire MonitorThere are two differ
- Page 10 and 11: Misfire Monitor Operation:DTCsMonit
- Page 12 and 13: AIR System MonitorThe secondary air
- Page 16 and 17: EVAP System Monitor - 0.020” dia.
- Page 18 and 19: Ford’s 0.020” evaporative syste
- Page 20 and 21: Typical 0.020” EVAP abort (fuel s
- Page 22 and 23: Additional malfunctions that are be
- Page 24: HO2S MonitorFront HO2S SignalThe ti
- Page 27 and 28: HO2S Heaters, front and rearThe HO2
- Page 29 and 30: In the 2002 MY, Ford will introduce
- Page 31 and 32: After the vehicle is started, durin
- Page 33 and 34: Finally, the differential pressure
- Page 35 and 36: EGR flow is monitored using an anal
- Page 37 and 38: Typical EGR flow check entry condit
- Page 39 and 40: Comprehensive Component Monitor - E
- Page 41 and 42: Ignition System Check Operation:DTC
- Page 43 and 44: The Intake Manifold Runner Control
- Page 45 and 46: Most vehicle applications no longer
- Page 47 and 48: Transmission Fluid Temperature Sens
- Page 49 and 50: Torque Converter Clutch Check Opera
- Page 51 and 52: 4R70W (RWD) Transmission(no turbine
- Page 53 and 54: CD4E (FWD) Transmission(has turbine
- Page 55 and 56: 5R55E (RWD) Transmission(has turbin
- Page 57 and 58: Direct One Way ClutchThe Direct One
- Page 59 and 60: Direct One Way ClutchThe Direct One
- Page 61 and 62: 4F27E (FN) (FWD) Transmission(has t
- Page 63 and 64: Exponentially Weighted Moving Avera
leed-up criteria is exceeded on three successive monitoring events, a 0.040 “ dia. leak is likely and a final vaporgeneration check is done to verify the leak, phases 3-4. Excessive vapor generation can cause a false MIL.Phase 3 - Vacuum releaseThe vapor generation check is done by releasing any vacuum, then closing the VMV, waiting for a period of time,and determining if tank pressure remains low or if it is rising due to excessive vapor generationPhase 4 - Vapor generationIf the pressure rise due to vapor generation is below the threshold limit for absolute pressure and change inpressure, a P0442 DTC is stored.0.040” EVAP Monitor<strong>Operation</strong>:DTCsMonitor executionMonitor SequenceSensors/Components OKMonitoring DurationP0455 (gross leak),P1450 (excessive vacuum),P0457 (gross leak, cap off),P1443 (gross leak, no flow),P0442 (0.040” leak)once per driving cycleHO2S monitor <strong>com</strong>pleted and OKMAF, IAT, VSS, ECT, CKP, TP, FTP, VMV, CVS360 seconds (see disablement conditions below)Typical 0.040” EVAP monitor entry conditions, Phases 0 through 4:Entry condition Minimum MaximumEngine off (soak) time6 hoursTime since engine start-up 330 seconds 1800 secondsIntake Air Temp 40 o F 90 - 100 o FBARO ( 20%Change in tank pressure: > 1 “ H 2 OChange in fuel fill level: > 15%Number of aborts: > 20 (may be up to 255)FORD MOTOR COMPANY REVISION DATE: OCTOBER 02, 2001 PAGE 14 OF 66
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