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Volvo engine code DTC P026D
Fuel Pressure, Timing and Quantity All cylinders may have pressure, timing and quantity deviations which result in significant change in engine performance and exhaust gas composition. These deviations may in part be used to diagnose and evaluate a faulty fuel system. DTC P026D Component / System Fuel System Monitoring Injection Quantity – High Monitor Strategy Description Actual air fuel ratio based fueling compared to expected Fault Limit Ratio = (Air fuel ratio based estimated fuel flow Modeled Fuel flow) > 1.42 Enable Conditions • Engine Exhaust Gas Temperature 100 - 400 °C • DOC Outlet Temperature 200 - 400 °C • DPF Outlet Temperature 200 - 400 °C • Average Engine Speed 1000 - 2000 RPM • Average Engine Torque > 1000 Nm • Ambient Air Temperature -8 - 55 °C • Barometric Pressure 75 - 105 kPa • Coolant Temperature > 65 °C Disable Conditions No Active DTC's: • P0117, P0115, P2229, P2226, P0071, P0108, P0105, P0340, P0335, P2200, P2203, P221A Time Required For DTC To Be Set 45 seconds (accumulated time) MIL Illumination 2 Drive Cycles