We're still looking for the perfect video. Got any ideas? Share them with us! Login
Volvo engine code DTC P240F
EGR: Slow Response Emission Threshold This OBD monitor evaluates a slowly responding EGR system by comparing two evaluation windows. Within a window, demanded EGR flowrate is evaluated. If a transition occurs within an allowable time, the demanded EGR flow is compared to the actual flow at the target time to determine if the proper flow was achieved. If the flow is not achieved then a DTC is raised. P240F EGR System Slow Response DTC P240F Component / System EGR System - Slow Response Monitor Strategy Description EGR mass flow fails to achieve a flow change Fault Limit Decreasing Delta = Modeled EGR mass flow - Measured EGR mass flow < -0.025 Increasing Delta = Measured EGR mass flow - Modeled EGR mass flow < -0.01 Enable Conditions Decreasing Low Flow Window • Engine Speed 580 - 1600 RPM • Engine Torque > 600 Nm • EGR Mass Flow Demand < 0.05 kg/s • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C High Flow Window • Engine Speed 550 - 620 RPM • Engine Torque 100 - 170 Nm • EGR Mass Flow Demand 0.03 - 0.05 kg/s • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C Increasing Low Flow Window • Engine Speed 650 - 1100 RPM • Engine Torque 200 - 600 Nm • EGR Mass Flow Demand 0.01 - 0.2 kg/s • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C High Flow Window • Engine Speed 1400 - 1600 RPM • Engine Torque > 2200 Nm • EGR Mass Flow Demand 0.06 - 0.13 kg/s • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C Disable Conditions No Active DTC's: • P0069, P046C, P0234, P0299 Time Required For DTC To Be Set Decreasing 33 seconds Increasing 23 seconds MIL Illumination 2 Drive Cycles