Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 21 (MCM)| ⛽ Diezel365

DESCRIPTION:Selective Catalyst Reduction (SCR) inlet NOx sensor – Drift (Low Box).

MONITORED PARAMETER:Engine out NOx.

TYPICAL ENABLING CONDITIONS:1. EGR Mass Flow greater than .08 kg/s.2. Engine Speed 1450-1900 rpm.3. Engine Torque 1400-2100 N·m.4. Battery Voltage greater than 11 vDC .5. Coolant Temperature greater than 65°C (149°F).6. Ambient Temperature greater than -8°C (18°F) Ambient.7. Barometric Pressure greater than 755 mbar.8. Engine not in regeneration mode.

MONITOR SEQUENCE:None

EXECUTION FREQUENCY:Always enabled

TYPICAL DURATION:1.2 seconds

DASH LAMPS:MIL

ENGINE REACTION:None

VERIFICATION:1. Warm up engine such that coolant temperature greater than 65°C (149°F).2. Ensure engine is not in regeneration mode.3. Ensure ambient temperature greater than -8°C (18°F) barometric pressure greater than 755 mbar.

NOTE: If any other EGR codes are active, fix those first.

PROBABLE CAUSES:1. Inspect the entire air inlet system, charge air cooler, and EGR piping/hoses.2. Check for failed injector.3. Check the aftertreatment system for leaks/damage.4. Perform a high idle regeneration.

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 21 (ACM) SCR NOx Inlet Sensor Drift Low

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 13 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Signal Not Available

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 10 (MCM) Selective Catalyst Reduction Inlet NOx Sensor – Drift

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 4 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed Low

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 3 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Circuit Failed High

Detroit DD13 GHG14 (2014-16) Fault Code: SPN 3216 FMI 2 (ACM) Selective Catalyst Reduction Inlet NOx Sensor Rationality Error

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