Jaguar XJ (X350). Manual — part 534

22 . Detach the knock sensor (KS) electrical connector from the left-hand valve cover.

23 . Disconnect the KS electrical connector.

24 . Disconnect the oil pressure sensor electrical connector.

25 . Detach the engine harness.

26 . Detach the glow plug electrical connector from the left-hand valve cover.

27 . Detach the engine breather hose.

28 . Disconnect the vacuum hose.

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CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel injection supply manifold until both unions have

been detached and cleaned. Failure to follow this instruction may result in foreign matter

ingress to the fuel injection system.

Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel

supply lines, the fuel injectors and the fuel injection supply manifold.

For additional information, refer to Fuel Injection Component Cleaning

30 . Disconnect the fuel injector electrical connectors.

31 . Detach the fuel injection wiring harness.

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.

CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel injection supply manifold until both unions have

been detached and cleaned. Failure to follow this instruction may result in foreign matter

ingress to the fuel injection system.

Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel

supply lines, the fuel injectors and the fuel injection supply manifold.

For additional information, refer to Fuel Injection Component Cleaning

33

.

CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel rail until both unions have been detached and

cleaned. Failure to follow this instruction may result in foreign matter ingress to the fuel

injection system.

CAUTION: Make sure that the fuel injector adaptor union does not move when

loosening the high-pressure fuel supply lines. Failure to follow this instruction may result

in damage to the fuel injector or the fuel injector adaptor union.

NOTE:

Left-hand rear injector shown, left-hand center and front similar.

Loosen the high-pressure fuel supply lines from the fuel injectors and fuel rail.

34

.

CAUTION: Make sure that the high-pressure fuel supply line remains in contact

with both the fuel injector and the fuel injection supply manifold until both unions have

been detached and cleaned. Failure to follow this instruction may result in foreign matter

ingress to the fuel injection system.

Using the pneumatic vacuum gun, vacuum foreign material from the high-pressure fuel

supply lines, the fuel injectors and the fuel injection supply manifold.

For additional information, refer to Fuel Injection Component Cleaning

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