DESCRIPTION:Outlet NOx sensor drifted high.
MONITORED PARAMETER:Selective catalyst reduction (SCR) outlet NOx.
TYPICAL ENABLING CONDITIONS:Always enabled
MONITOR SEQUENCE:None
EXECUTION FREQUENCY:Continuous when enabling conditions met.
TYPICAL DURATION:Two seconds
DASH LAMPS:MIL
ENGINE REACTION:None
VERIFICATION:Parked regeneration
NOTE: If any other EGR codes are active, fix those first.
PROBABLE CAUSES:1. Check the aftertreatment system for leaks/damage.2. Perform a high idle regeneration with the metering valve or dosing unit disconnected.
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3226 FMI 20 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift Low
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3226 FMI 13 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Signal Not Available
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3226 FMI 4 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed Low
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3226 FMI 3 (ACM) Selective Catalyst Reduction Outlet NOx Sensor Circuit Failed High
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3226 FMI 2 (ACM) Selective Catalyst Reduction Outlet NOx Sensor – Drift
Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3223 FMI 7 (ACM) NOx RAW Sensor Not Ready After Dewpoint Enable Check