fuel pressure JAGUAR XFR 2010 1.G Owner's Guide

1 LH fuel rail 2 Crossover tube 3 RH fuel rail 4 FRP sensor 5 Fuel injector (8 off) The fuel rails and crossover tube are made from stainless steel. Bolts attach each fuel rail to the related cylinder head. The
crossover tube connects the front high pressure line to the LH fuel rail, which ensures there is equal pressure in the two fuel rails. Four P-clips attach the crossover tube to the intercooler-tank top.
The rear of the RH fuel rail incorporates a threaded boss for installation of the FRP sensor. FUEL RAILS AND CROSSOVER TUBE

RH fuel rail. The FRP sensor is screwed into a threaded boss in the fuel rail. A flying lead and three pin connector provides the interface with the engine harness.

The FRP sensor contains a steel diaphragm fitted with strain gages, which are incorporated into a Wheatstone bridge. The output from the Wheatstone bridge is processed by the ECM to derive a pressure value.
FUEL INJECTORS



The fuel injectors spray fuel from the fuel rail directly into the combustion chambers. The fuel injectors are installed close to
the center of the combustion chambers, between the inlet and exhaust valves and next to the spark plug.

The fuel injectors are a push fit in the fuel rails and the cylinder heads. On each fuel injector, a rubber O-ring seals the head of
the fuel injector in the fuel rail. A teflon ring seals the nozzle of the fuel injector in the cylinder head. A clamp locks each fuel
injector to the fuel rail. FUEL RAIL PRESSURE SENSOR

Symptom Possible Causes Action Purge valve
Difficult hot start
Injector leak
Electronic engine control
Purge valve
Fuel pump
Ignition system
EGR valve stuck open Check for injector leak, install new injector as required.
Check for electronic engine controls, evaporative emissions,
fuel system, ignition system and engine emission system
related DTCs and refer to the relevant DTC Index Difficult to start after hot
soak (vehicle standing,
engine off, after engine has
reached operating
temperature)
Injector leak
Electronic engine control
Purge valve
Fuel pump
Ignition system
EGR valve stuck open Check for injector leak, install new injector as required.
Check for electronic engine controls, evaporative emissions,
fuel system, ignition system and engine emission system
related DTCs and refer to the relevant DTC Index Engine stalls soon after start
Breather system
disconnected/restricted
ECM relay
Electronic engine control
Ignition system
Air intake system restricted
Air leakage
Fuel lines Ensure the engine breather system is free from restriction
and is correctly installed. Check for electronic engine
control, ignition system and fuel system related DTCs and
refer to the relevant DTC Index. Check for blockage in air
filter element and air intake system. Check for air leakage
in air intake system Engine hesitates/poor
acceleration
Fuel pressure, fuel pump,
fuel lines
Injector leak
Air leakage
Electronic engine control
Throttle motor
Restricted accelerator pedal
travel (carpet, etc)
Ignition system
EGR valve stuck open
Transmission malfunction Check for fuel system related DTCs and refer to the
relevant DTC Index. Check for injector leak, install new
injector as required. Check for air leakage in air intake
system. Ensure accelerator pedal is free from restriction.
Check for electronic engine controls, ignition, engine
emission system and transmission related DTCs and refer
to the relevant DTC Index Engine backfires
Fuel pump/lines
Air leakage
Electronic engine controls
Ignition system
Sticking variable camshaft
timing (VCT) hub Check for fuel system failures. Check for air leakage in
intake air system. Check for electronic engine controls,
ignition system and VCT system related DTCs and refer to
the relevant DTC Index Engine surges
Fuel pump/lines
Electronic engine controls
Throttle motor
Ignition system Check for fuel system failures. Check for electronic engine
controls, throttle system and ignition system related DTCs
and refer to the relevant DTC Index Engine detonates/knocks
Fuel pump/lines
Air leakage
Electronic engine controls
Sticking VCT hub Check for fuel system failures. Check for air leakage in
intake air system. Check for electronic engine controls and
VCT system related DTCs and refer to the relevant DTC
Index No throttle response
Electronic engine controls
Throttle motor Check for electronic engine controls and throttle system
related DTCs and refer to the relevant DTC Index Poor throttle response
Breather system
disconnected/restricted
Electronic engine control
Transmission malfunction
Traction control event Air
leakage Ensure the engine breather system is free from restriction
and is correctly installed. Check for electronic engine
controls, transmission and traction control related DTCs and
refer to the related DTC Index. Check for air leakage in
intake air system DTC Index

For a list of Diagnostic Trouble Codes (DTCs) that could be logged in the Engine Control Module (ECM), please refer to Section
303-14.
REFER to: Electronic Engine Controls (303-14C Electronic Engine Controls - V8 5.0L Petrol, Diagnosis and Testing) / Electronic Engine Controls (303-14D Electronic Engine Controls - V8 S/C 5.0L Petrol, Diagnosis and Testing).

Removal steps in this procedure may contain installation details.


Some variation in the illustrations may occur, but the essential information is always correct.

1. Refer to: Petrol and Petrol-Ethanol Fuel Systems Health and Safety Precautions (100-00 General Information, Description and Operation).

2. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

3. Refer to: Fuel System Pressure Release - V8 5.0L Petrol/V8 S/C 5.0L Petrol (310-00 Fuel System - General Information, General Procedures).

4. Refer to: Secondary Bulkhead Panel LH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation).
5. Refer to: Fuel Injection Component Cleaning (303-04D Fuel Charging and Controls - V8 5.0L Petrol, General Procedures).


6. CAUTION: Be prepared to collect escaping fluids.
















7.
8. CAUTION: Be prepared to collect escaping fluids. www.JagDocs.com

Removal steps in this procedure may contain installation details.

Some variation in the illustrations may occur, but the essential information is always correct.

1. Refer to: Petrol and Petrol-Ethanol Fuel Systems Health and Safety Precautions (100-00 General Information, Description and Operation).

2. Refer to: Battery Disconnect and Connect (414-01 Battery, Mounting and Cables, General Procedures).

3. Refer to: Fuel System Pressure Release - V8 5.0L Petrol/V8 S/C 5.0L Petrol (310-00 Fuel System - General Information, General Procedures).

4. Refer to: Secondary Bulkhead Panel RH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation).
5. Refer to: Fuel Injection Component Cleaning (303-04D Fuel Charging and Controls - V8 5.0L Petrol, General Procedures).


6. CAUTION: Be prepared to collect escaping fluids.
















7.
8. CAUTION: Be prepared to collect escaping fluids.











9. Refer to: Air Cleaner Outlet Pipe RH (303-12C Intake Air Distribution and Filtering - V8

Published: 11-May-2011
Fuel Charging and Controls - V8 S/C 5.0L Petrol - Left-Hand Fuel Rail High-Pressure
Fuel Pump Removal and Installation

Removal

CAUTION: Make sure that tools and equipment are clean, free of foreign material and lubricant.
NOTES:

Removal steps in this procedure may contain installation details.

Some variation in the illustrations may occur, but the essential information is always correct.
1. Refer to: Petrol and Petrol-Ethanol Fuel Systems Health and Safety Precautions (100-00 General Information, Description and Operation).
2. Refer to: Fuel System Pressure Release - V8 5.0L Petrol/V8 S/C 5.0L Petrol (310-00 Fuel System - General Information, General Procedures).
3. Refer to: Secondary Bulkhead Panel LH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation). 4. Refer to: Secondary Bulkhead Panel RH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation). 5. Refer to: Engine Cover - V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-05 Interior Trim and Ornamentation, Removal and Installation).
6. Refer to: Fuel Injection Component Cleaning (303-04E Fuel Charging and Controls - V8 S/C 5.0L Petrol, General Procedures).

7. CAUTION: Be prepared to collect escaping fluids.
















8. www.JagDocs.com

18.

















19.
20. NOTE: Engine shown removed for clarity.

















NOTE: Engine shown removed for clarity.























CAUTIONS:

Remove and discard the high-pressure fuel supply lines.

Be prepared to collect escaping fluids.

Make sure that all openings are sealed. Use new blanking caps.

NOTE: Engine shown removed for clarity.

Installation


1. NOTE: Lubricate the fuel rail high-pressure fuel pump bucket with
clean engine oil.
















2. CAUTION: Tighten the Torx screws a turn at a time until the
correct torque is achieved.

NOTE: Lubricate the fuel rail high-pressure fuel pump O-ring seal
with clean engine oil.
Torque: 12 Nm









3. Loosen the Torx screws half a turn each. 4. www.JagDocs.com

5. CAUTION: Install new high-pressure fuel supply lines.
NOTES:
Engine shown removed for clarity.

Remove and discard the blanking caps.

Install the bolt and unions fully finger tight before final
tightening.























6. CAUTION: Care must be taken when positioning the fuel rail
high-pressure fuel pump cover to one side.

NOTE: Fuel rail high-pressure fuel pump cover shown removed for
clarity.
Torque: 12 Nm





7. Lower the vehicle.
8. NOTES:

Do not tighten at this stage.

Remove and discard the blanking caps.








9. WARNING: Do not work on or under a vehicle supported only by a jack. Always

Published: 11-May-2011
Fuel Charging and Controls - V8 S/C 5.0L Petrol - Right-Hand Fuel Rail High-Pressure
Fuel Pump Removal and Installation

Removal

CAUTION: Make sure that tools and equipment are clean, free of foreign material and lubricant.
NOTES:

Removal steps in this procedure may contain installation details.

Some variation in the illustrations may occur, but the essential information is always correct.
All vehicles
1. Refer to: Petrol and Petrol-Ethanol Fuel Systems Health and Safety Precautions (100-00 General Information, Description and Operation).
2. Refer to: Fuel System Pressure Release - V8 5.0L Petrol/V8 S/C 5.0L Petrol (310-00 Fuel System - General Information, General Procedures).
3. Refer to: Secondary Bulkhead Panel LH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation). 4. Refer to: Secondary Bulkhead Panel RH - TDV6 3.0L Diesel /V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-02 Front End Body Panels, Removal and Installation). 5. Refer to: Engine Cover - V8 5.0L Petrol/V8 S/C 5.0L Petrol (501-05 Interior Trim and Ornamentation, Removal and Installation).
6. Refer to: Fuel Injection Component Cleaning (303-04E Fuel Charging and Controls - V8 S/C 5.0L Petrol, General Procedures).

7. CAUTION: Be prepared to collect escaping fluids.