OBD Operation Summary for 6.7L Diesel - MotorCraftService.com
OBD Operation Summary for 6.7L Diesel - MotorCraftService.com OBD Operation Summary for 6.7L Diesel - MotorCraftService.com
VoltageNominal Voltage Calibration:Nominal Voltage Calibration (NVC) is a series of closed-loop controllers on the charge/discharge profile of fuelinjectors during an injection event. NVC is designed to compensate for changes due to aging of the piezo stackand hydraulic control elements within individual injectors and of the injector charging circuitry to maintain consistentoperation of these components over the life of the injector. The injector charge/discharge profile is shown in thefigure below.injector voltageafter chargingEnergizingTimevoltage at endof energizingdischargedvoltagecharge time(fixed at 100 us)TimedischargetimeNominal Voltage Calibration (NVC) Monitor Operation:DTCsMonitor ExecutionMonitor SequenceSensors OKTypical Monitoring DurationP1551 – Cylinder 1 Injector Circuit Range/PerformanceP1552 – Cylinder 2 Injector Circuit Range/PerformanceP1553 – Cylinder 3 Injector Circuit Range/PerformanceP1554 – Cylinder 4 Injector Circuit Range/PerformanceP1555 – Cylinder 5 Injector Circuit Range/PerformanceP1556 – Cylinder 6 Injector Circuit Range/PerformanceP1557 – Cylinder 7 Injector Circuit Range/PerformanceP1558 – Cylinder 8 Injector Circuit Range/PerformancecontinuousNoneInjector open circuit (P0201-0208), Injector performance (P02EE-02F5), Injectorshort circuit (P1201-1208), Injector high to low short (P1261-1268), ECT (P0117,P0118), RPS (P0191, P0192, P0193, P228E, P228F)2 sec (set point voltage), 90 sec (other two tests)FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 36 OF 157
Typical Nominal Voltage Calibration (NVC) Monitor Entry Conditions:Entry condition Minimum MaximumRail pressure 1200 bar 1600 barEngine coolant temperature 70 deg C 100 deg CInjection durationSingle pilot-main injection profile300 usTypical Nominal Voltage Calibration (NVC) Monitor Malfunction Thresholds:If the set point voltage at end of energizing (yellow dot in figure) exceeds the allowable voltage given in the chartbelow for the current rail pressure set point or if there exists a persistent deviation between set and measureddischarge time (yellow dot to blue dot in figure) or if there exists a persistent deviation between the set andmeasured voltage at end of energizing (yellow dot in figure)Maximum Allowable Voltage At End of Energizing :Rail pressure (bar) 300 800 1200 2000Maximum allowed voltage (V) 89 91 93 108FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 37 OF 157
- Page 1 and 2: 2013 MY OBD System OperationSummary
- Page 3 and 4: Cam and Crank Sensor: .............
- Page 5 and 6: Introduction - OBD-II and EMDOBD-II
- Page 7 and 8: Comprehensive Component MonitorGlow
- Page 9 and 10: System Schematic 6.7L Chassis Certi
- Page 11 and 12: The dynamometer certified applicati
- Page 13 and 14: NON-METHANE HYDROCARBON (NMHC) CONV
- Page 15 and 16: OXIDES OF NITROGREN (NOx) CONVERTIN
- Page 17 and 18: Selective Catalyst Reduction Feedba
- Page 20 and 21: Misfire Monitor Operation:DTCsMonit
- Page 22 and 23: Fuel Rail Pressure ( FRP ) Rational
- Page 24 and 25: Fuel Temperature Sensor Circuit Che
- Page 26 and 27: Fuel Pressure Control Valve (PCV) M
- Page 28 and 29: Fuel Injector Driver Circuit Monito
- Page 30 and 31: Injector Code Missing/Invalid:Injec
- Page 32 and 33: Injection Timing / Injection quanti
- Page 34 and 35: Feedback control:Fuel Balancing Con
- Page 38 and 39: EXHAUST GAS SENSOR MONITORAir-Fuel
- Page 40 and 41: The NOx sensor is primarily used to
- Page 42 and 43: percent O2P0133 (O2 slow response)
- Page 44 and 45: EXHAUST GAS RECIRCULATION (EGR) SYS
- Page 46 and 47: EGR Cooler/ECB Entry Conditions (Ov
- Page 48 and 49: EGR System Slow ResponseSlow respon
- Page 50 and 51: Mass Airflow Closed-loop Control Li
- Page 52 and 53: Note: this monitor also serves to m
- Page 54 and 55: Functional Overboost MonitoringThe
- Page 56 and 57: Threshold Underboost MonitoringThe
- Page 58 and 59: PARTICULATE MATTER (PM) FILTER MONI
- Page 60 and 61: DPF Incomplete Regeneration Monitor
- Page 62 and 63: DPF Restriction MonitorThe DPF is m
- Page 64 and 65: Mass Air Flow Sensor Functional Che
- Page 66 and 67: Warm-up profiles with nominal therm
- Page 68 and 69: Primary Coolant Temp Dynamic Monito
- Page 70 and 71: COLD START EMISSION REDUCTION STRAT
- Page 72 and 73: FBC operates in closed-loop control
- Page 74 and 75: Engine SensorsAir Temperature Ratio
- Page 76 and 77: Ambient Air Temperature (AAT) Senso
- Page 78 and 79: Charge Air Cooler Temperature (CACT
- Page 80 and 81: EGR Cooler Downstream Temperature R
- Page 82 and 83: Barometric Pressure and Manifold Ab
- Page 84 and 85: Turbine Upstream Pressure Sensor Pl
VoltageNominal Voltage Calibration:Nominal Voltage Calibration (NVC) is a series of closed-loop controllers on the charge/discharge profile of fuelinjectors during an injection event. NVC is designed to <strong>com</strong>pensate <strong>for</strong> changes due to aging of the piezo stackand hydraulic control elements within individual injectors and of the injector charging circuitry to maintain consistentoperation of these <strong>com</strong>ponents over the life of the injector. The injector charge/discharge profile is shown in thefigure below.injector voltageafter chargingEnergizingTimevoltage at endof energizingdischargedvoltagecharge time(fixed at 100 us)TimedischargetimeNominal Voltage Calibration (NVC) Monitor <strong>Operation</strong>:DTCsMonitor ExecutionMonitor SequenceSensors OKTypical Monitoring DurationP1551 – Cylinder 1 Injector Circuit Range/Per<strong>for</strong>manceP1552 – Cylinder 2 Injector Circuit Range/Per<strong>for</strong>manceP1553 – Cylinder 3 Injector Circuit Range/Per<strong>for</strong>manceP1554 – Cylinder 4 Injector Circuit Range/Per<strong>for</strong>manceP1555 – Cylinder 5 Injector Circuit Range/Per<strong>for</strong>manceP1556 – Cylinder 6 Injector Circuit Range/Per<strong>for</strong>manceP1557 – Cylinder 7 Injector Circuit Range/Per<strong>for</strong>manceP1558 – Cylinder 8 Injector Circuit Range/Per<strong>for</strong>mancecontinuousNoneInjector open circuit (P0201-0208), Injector per<strong>for</strong>mance (P02EE-02F5), Injectorshort circuit (P1201-1208), Injector high to low short (P1261-1268), ECT (P0117,P0118), RPS (P0191, P0192, P0193, P228E, P228F)2 sec (set point voltage), 90 sec (other two tests)FORD MOTOR COMPANY REVISION DATE: FEBRUARY 9, 2012 09.01.00.02-PAGE 36 OF 157
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