Volvo All Engines (2010 Emissions) Fault Code: SPN 3051 FMI 7 PID: Catalyst 2 System Monitor
Conditions for diagnostic trouble code (DTC):
1) Insufficient aftertreatment diesel exhaust fluid (DEF) dosage
Observable symptoms
1) Smell of ammonia
Probable cause
1) Aftertreatment diesel exhaust fluid (DEF) dosage valve
2) Aftertreatment selective catalytic reduction (SCR) catalyst
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