Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4364 FMI 18 (ACM) SCR NOx| ⛽ Diezel365

DESCRIPTION:This code sets when the Aftertreatment Control Module (ACM) detects that the Selective Catalyst Reduction (SCR) NOx conversion efficiency is low.

MONITORED PARAMETER:1. SCR inlet NOx sensor.2. SCR outlet NOx sensor.

TYPICAL ENABLING CONDITIONS:1. Diesel Exhaust Fluid (DEF) dosing enabled.2. 1000 to 2100 rpm.3. 15 to 100% load.

MONITOR SEQUENCE:None

EXECUTION FREQUENCY:Continuous when enabling conditions met.

TYPICAL DURATION:30 minutes

DASH LAMPS:MIL

ENGINE REACTION:None

VERIFICATION:Parked regeneration

NOTE: If any 3364-xx codes present, fix those first.

PROBABLE CAUSES:1. DEF tank contaminated (fuel, water, etc…).2. DEF pressure sensor failure.3. DEF pressure sensor connector/harness.4. Perform stationary regen.5. DEF air supply lines cracked/leaked/kinked.

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4364 FMI 1 (ACM) SCR NOx Conversion Efficiency Very Low

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4363 FMI 20 (ACM) SCR Temperature Drift – Inlet Low/Outlet High

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4363 FMI 8 (ACM) SCR Outlet Temperature Signal Spike

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4363 FMI 4 (ACM) Selective Catalyst Reduction Outlet Temperature Sensor Circuit Failed Low

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4363 FMI 3 (ACM) Selective Catalyst Reduction Outlet Temperature Sensor Circuit Failed High

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 4363 FMI 0 (ACM) SCR Outlet Temperature High

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