Detroit Diesel
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3250 FMI 7 (ACM) Diesel Oxidation Catalyst Outlet Temperature Circuit Failed Low
Posted by PerDiezel Solutions on
NOTE: Please see the step by step troubleshooting procedures for this specific code. NOTE: If any other codes active, fix those first. PROBABLE CAUSES:1. DOC outlet temperature sensor harness/connector.2. DOC outlet temperature sensor.3. Failed fuel injector.4. Remove the DPF and inspect for coolant or oil contamination. If found, find source of leak.5. Perform a parked regen.6. Electrical connections upstream of the ECM can also cause this code: ATD harness 10-pin connector, VIH 31-pin connector, and MCM 120-pin connector.7. DPF inlet pressure sensor.8. DPF inlet pressure sensor harness/connector.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3250 FMI 8 (ACM) Diesel Oxidation Catalyst Outlet Temperature – Signal Spike
Posted by PerDiezel Solutions on
DESCRIPTION:This fault indicates the aftertreatment control module (ACM) has detected a sudden temperature shift on the diesel oxidation catalyst (DOC) outlet temperature sensor. MONITORED PARAMETER:DOC outlet temperature. TYPICAL ENABLING CONDITIONS:DOC outlet temperature greater than 150°C (302°F). MONITOR SEQUENCE:None EXECUTION FREQUENCY:None TYPICAL DURATION:10 seconds DASH LAMPS:1. CEL2. MIL ENGINE REACTION:None VERIFICATION:Low temp ATD check. POSSIBLE CAUSES:1. Wiring concern.2. Poor terminal fit.3. Corrosion.4. Chaffing. NOTE: If codes 3250-3 or 3250-4 active, fix those first. PROBABLE CAUSES:1. DOC outlet temperature sensor.2. DOC outlet temperature sensor harness/connector.
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3251 FMI 0 (ACM) Diesel Particulate Filter Pressure Out of Range Very High
Posted by PerDiezel Solutions on
DESCRIPTION:This fault code sets when the Diesel Oxidation Catalyst (DOC) Inlet Pressure is 35 kPa (5 psi) greater than the Diesel Particulate Filter (DPF) Outlet Pressure for more than 10 seconds. MONITORED PARAMETER:DOC Inlet Pressure sensor and DPF Outlet Pressure sensor. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL3. SEL ENGINE REACTION:Derate 25% VERIFICATION:Run engine between 1200 to 1800 rpm with a load less than 10%. PROBABLE CAUSES:1. Inspect all connections upstream of the MCM – DPF inlet pressure sensor, ATD harness 10-pin connector, VIH 31-pin connetor, and MCM...
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3251 FMI 1 (ACM) Diesel Particulate Filter Pressure Out of Range Low
Posted by PerDiezel Solutions on
DESCRIPTION:DPF pressure out of range low. MONITORED PARAMETER:1. DOC inlet pressure sensor.2. DPF outlet pressure sensor. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL3. SEL ENGINE REACTION:Derate 25% VERIFICATION:Run engine between 1500 to 1900 rpm with a load less than 80%. PROBABLE CAUSES:1. Inspect DPF outlet pressur ehose for leaks/kinks/plugging.2. Inspect electrical connections upstream of the MCM (sensor, ATD 10-pin connector, VIH 31-pin connector, MCM 120-pin connector).3. Remove the DPF and inspect for signs of oil, fuel, or soot contamination. If found, find source.4. DPF failure.5. Performed parked regen....
Detroit DD16 GHG14 (2014-16) Fault Code: SPN 3251 FMI 16 (ACM) Diesel Particulate Filter Pressure Out of Range High
Posted by PerDiezel Solutions on
DESCRIPTION:This fault code sets when the diesel oxidation catalyst (DOC) inlet pressure is 28 kPa (4.2 psi) greater than the diesel particulate filter (DPF) outlet pressure for more than 10 seconds. MONITORED PARAMETER:DOC inlet pressure sensor and DPF outlet pressure sensor. TYPICAL ENABLING CONDITIONS:Always on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL3. SEL ENGINE REACTION:Derate 25% VERIFICATION:Run engine between 1200 to 1800 rpm with a load less than 10%. PROBABLE CAUSES:1. Inspect all connections upstream of the MCM – DPF inlet pressure sensor, ATD harness 10-pin connector, VIH 31-pin connetor, and MCM...
