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Home >> Jaguar >> 2019 >> XF S >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 13 (Fuel Tank And Lines - Fuel Tank And Lines - Diesel -- XF/(X260)) >> Fuel Tank And Lines - Diesel (G1800234) >> Description And Operation >> Fuel Tank And Lines - INGENIUM I4 2.0L Diesel >> Fuel Tank >> Auxiliary Fuel Pump - If Fitted

Auxiliary Fuel Pump - If Fitted

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The auxiliary fuel pump has a fuel inlet feed from the primary fuel filter and an outlet feed to the auxiliary fuel filter. The auxiliary fuel pump has a nominal flow rate of 205 L/hour at a pressure of 4.5 bar (65.27 lbf/in2 ), when supplied with 12 V.

Operation of the auxiliary fuel pump is regulated by the Fuel Pump Driver Module (FPDM) which is controlled by the Powertrain Control Module (PCM) using a Pulse Width Modulation (PWM) output signal. The FPDM regulates the flow and pressure supplied by controlling the operation of the auxiliary fuel pump via hardwired connection.

Fuel supply for the auxiliary fuel pump is provided by the Low Pressure (LP) fuel pump, located in the fuel tank.

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