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Home >> Jaguar >> 2020 >> XF Checkered Flag >> Repair and Diagnosis >> External Pages >> Different car >> Section 36 (Exhaust System - INGENIUM I4 2.0L Diesel -- XE (X760)) >> Exhaust System - INGENIUM I4 2.0L Diesel >> Selective Catalyst Reduction >> Description And Operation >> Component Description >> Diesel Exhaust Fluid (Def) Injection Pump

Diesel Exhaust Fluid (Def) Injection Pump

WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
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The Diesel Exhaust Fluid (DEF) injection pump is an assembly of two solenoid pumps, located in the DEF tank module. The pressure pump provides 6.5 bar operating pressure. The 6.5 bar pressure is required to maintain the complete DEF atomization in the exhaust gas. The purge pump is used to purge the DEF from the DEF pressure line at engine shut-down to prevent freezing in the DEF injector at low temperatures. The pumps have a fused power supply from the Rear Junction Box (RJB). The PCM controls the ground connection of the pumps individually via hardwired connections.

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