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Volvo engine code DTC P02D1
Fuel Pressure, Timing and Quantity Threshold – Single Cylinder High Mass Flow This OBD monitor works by observing engine acceleration as measured by the crank angle sensor. This acceleration measurement is taken during a crank angle window where the current firing cylinder should be generating it’s torque. Acceleration is then filtered with a low pass filter and after all cylinders have fired, an average acceleration of all cylinders is generated. The error of each cylinder is calculated as the deviation of it’s individual acceleration reading from the average acceleration value. An average quantity offset value for all cylinders (either positive or negative) is calculated and if a single cylinder’s fuel value deviates from a calibrated limit a DTC is set. P02D1 Single Cylinder High Mass Flow Monitor (Cylinder 3) DTC P02D1 Component / System Fuel System Monitoring Injection Quantity – High (Cylinder 3) Monitor Strategy Description Single cylinder fueling offset Fault Limit Fueling offset of any one injector at idle < -1.5 deg CA Enable Conditions • Vehicle Speed < 0.1 km/h • Engine Speed 525 - 725 RPM • PTO Not Active • Engine Torque 0 - 600 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, P0340, P0335, P0301, P0302, P0303, P0304, P0305, P0306, P0300, P0262, P0265, P0268, P0271, P0274, P0277, P0201, P0202, P0203, P0204, P0205, P0206 Time Required For DTC To Be Set 600 seconds (accumulated time at idle) MIL Illumination 2 Drive Cycles