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Volvo engine code DTC P20E8
Aftertreatment DEF Pump: Rationality Monitors The Aftertreatment DEF pump has internal diagnostics which evaluate whether the DEF pump is able to meet its demand. If the pump reports insufficient performance for more than a threshold time then a DTC is set. P218F Aftertreatment DEF Pump: Functional Check DTC P218F Component / System DEF Pump - Functional Monitor Strategy Description Urea flow through the orifice functional check Fault Limit • DEF pressure > 1100 kPa • Time above DEF pressure limit > 20 seconds Enable Conditions • Engine Speed 550 RPM Disable Conditions No Active DTC's: • P204C, P204D, P204A, P2049, P2048, P2047, P208E Time Required For DTC To Be Set 20 seconds MIL Illumination 2 Drive Cycles