Land Rover Fuel Tank And Lines Verification 2007 Rover Manual
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Fuel Tank and Lines
Overview
For information on the system operation, refer to section 310-01 - Fuel Tank and Lines in the workshop manual.
Inspection and Verification
Published : Dec 17, 2007
WARNING : Do NOT carry out any work on the fuel sy stem with the engine running. The fuel
pressure within the system can be as high as 1600 b ar (23,206 lb/in²). Failure to follow this instruction may
result in personal injury.
WARNING : Eye protection must be worn at all times when working on or near any fuel related
components. Failure to follow this instruction may result in personal injury.
WARNING : This procedure involves fuel handling. B e prepared for fuel spillage at all times and
always observe fuel handling precautions. Failure t o follow this instruction may result in personal injury.
WARNING : After carrying out repairs, the fuel sys tem must be checked visually for leaks. This
should be done after the engine has been run, but w ith the engine switched OFF. Failure to follow this
instruction may result in personal injury.
WARNING : If taken internally, DO NOT induce vomit ing. Seek immediate medical attention. Failure
to follow this instruction may result in personal i njury.
WARNING : If fuel contacts the eyes, flush the eye s with cold water or eyewash solution and seek
medical attention. Failure to follow this instructi on may result in personal injury.
WARNING : Wash hands thoroughly after handling, as prolonged contact may cause irritation.
Should irritation develop, seek medical attention. F ailure to follow this instruction may result in personal
injury.
CAUTION : Before disconnecting any part of the sys tem, it is imperative that all dust, dirt and debris
is removed from around components to prevent ingres s of foreign matter into the fuel system. Failure to
follow this instruction may result in damage to the vehicle.
CAUTION : The fuel pipes between the injectors and the rail must be discarded after each use, and
new pipes installed. Failure to follow this instruc tion may result in damage to the vehicle.
CAUTION : It is essential that absolute cleanlines s is observed when working with these
components. Always install blanking plugs to any op en orifices or lines. Failure to follow this instruction
may result in damage to the vehicle.
1 . Verify the customer concern.
2 . Visually inspect for obvious mechanical or electrical faults.
3 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible) before proceeding to the next step.
4 . Use the approved diagnostic system or a scan to ol to retrieve any diagnostic trouble codes (DTCs) before moving
onto the symptom chart or DTC index.
Make sure that all DTCs are cleared following recti fication.
Symptom Chart
CAUTION : Make sure that the workshop area in whic h the vehicle is being worked on is as clean
and dust-free as possible. Areas in which work on c lutches, brakes or where welding or machining are
carried out are not suitable in view of the risk of contamination to the fuel system. Failure to follo w this
instruction may result in damage to the vehicle.
CAUTION : Make sure that any protective clothing w orn is clean and made from lint-free non-
flocking material. Failure to follow this instructi on may result in damage to the vehicle.
CAUTION : Make sure that any protective gloves wor n are new and are of the non-powdered latex
type. Failure to follow this instruction may result in damage to the vehicle.
CAUTION : Make sure that clean, non-plated tools a re used. Clean tools using a new brush that will
not lose its bristles and fresh cleaning fluid pri or to starting work on the vehicle. Failure to foll ow this
instruction may result in damage to the vehicle.
CAUTION : Use a steel-topped work bench and cover it with clean, lint-free, non-flocking material.
Failure to follow this instruction may result in da mage to the vehicle.
Mechanical Electrical
Fuel level
Contaminated fuel
Fuel supply line(s)
Fuel return line(s)
High-pressure fuel supply line(s) Fuel tank filler pipe
Fuel leak(s)
Fuel tank
Fuel filler cap
Fuel filter Push connect fittings
Fuel rail
Fuel injection pump
Exhaust gas recirculation (EGR) system
Battery charge and condition
Fuse(s)
Inertia fuel shutoff (IFS) switch Fuel pump module relay
Fuel pump module
Electrical connector(s)
Damaged or corroded wiring harness
Fuel volume control valve (FVCV) Fuel pressure control valve (FPCV)
Engine control module (ECM)
Make sure that all DTCs are cleared following rectification.
Symptom Possible causes Action
Engine cranks,
Inertia fuel shutoff (IFS)
switch
Low/Contaminated fuel
Fuel pump module fault
Low pressure fuel system
fault
Air leakage Blocked fuel filter
Check that the inertia switch has not tripped. Check the fuel
level/condition. Check the fuel pump module operati on, check
the low pressure fuel system for leaks/damage. Chec k the intake
but does not start Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control valve (FPCV) blocked/contaminated Fuel injection pump fault Crankshaft position (CKP) sensor ECM fault air system for leaks. Check the fuel filter, check the FVCV and FPCV. Check the fuel injection pump. Check the CKP sen sor. Refer to the relevant section of the workshop manua l. Refer to the warranty policy and procedures manual if a modu le is suspect. Difficult to start Glow plug system fault (very cold conditions) Low/Contaminated fuel Fuel pump module fault Low pressure fuel system fault Air leakage Blocked fuel filter Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control valve (FPCV) blocked/contaminated Exhaust gas recirculation (EGR) valve fault Check the glow plug circuits. Check the fuel level/ condition. Check the fuel pump module operation, check the low pressure fuel system for leaks/damage. Check the intake air system for leaks. Check the fuel filter, check the FVCV and FPCV. Check the EGR valves. Refer to the relevant section of the workshop manual. Rough idle Low/Contaminated fuel Low pressure fuel system fault Air leakage Blocked fuel filter Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control valve (FPCV) blocked/contaminated Exhaust gas recirculation (EGR) valve fault Check the fuel level/condition. Check the low press ure fuel system for leaks/damage. Check the intake air syste m for leaks. Check the fuel filter, check the FVCV and FPCV. Check t he EGR valves. Refer to the relevant section of the workshop manual. Lack of power when accelerating Air intake system fault Catalytic converter blocked Low fuel pressure Exhaust gas recirculation (EGR) valve fault Turbocharger fault Check the intake air system. Check for a blockage/r estriction in the exhaust system, install new components as neces sary. Check the fuel pressure. Check the EGR valves. Check the turbocharger condition and actuator operation. Refe r to the relevant section of the workshop manual. Engine stops/stalls Low/Contaminated fuel Fuel pump module fault Low pressure fuel system fault High pressure fuel leak Air leakage Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control valve (FPCV) blocked/contaminated Exhaust gas recirculation (EGR) valve fault Check the fuel level/condition. Check the fuel pump module operation, check the fuel system for leaks/damage. Check the intake air system for leaks. Check the FVCV and FPCV. Check the EGR valves. Engine judders Low/Contaminated fuel Low pressure fuel system fault High pressure fuel leak Air leakage Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control Check the fuel level/condition. Check the fuel syst em for leaks/damage. Check the intake air system for leaks . Check the FVCV and FPCV. Check the fuel injection pump. Refer to the relevant section of the workshop manual.
DTC index NOTE : NOTE : valve (FPCV) blocked/contaminated Fuel injection pump fault Excessive fuel consumption Low pressure fuel system fault High pressure fuel leak Fuel temperature sensor leak Fuel volume control valve (FVCV) blocked/contaminated Fuel pressure control valve (FPCV) blocked/contaminated Fuel injector failure Exhaust gas recirculation (EGR) valve fault Check the fuel system for leaks/damage. Check the F VCV and FPCV. Check for injector DTCs. Check the EGR valves. R efer to the relevant section of the workshop manual. Generic scan tools may not read the codes listed, o r may read only 5-digit codes. Match the 5 digits from the scan tool to the first 5 digits of the 7-digit code listed to identify the fault (the last 2 digits give extra information read by the manufacturer-approved diagnostic system ). For a full list of ECM DTCs, refer to section 303-1 4 - Electronic Engine Controls in the workshop manual. DTC Description Possible causes Action P008700 Fuel Rail/System Pressure - Too Low Fuel rail pressure (FRP) sensor disconnected FRP sensor to ECM sensing circuit short circuit to ground FRP sensor supply circuit high resistance FRP sensor failure Fuel line leak Restricted fuel line Fuel pump module circuit high resistance Fuel pump module circuit short circuit to ground Fuel pump module failure Volume control valve fault Pressure control valve fault Refer to the electrical guides and check the FRP sensor circuits. For FRP sensor tests, refer to the relevan t workshop manual section. Check the low pressure fue l lines for damage or restrictions. Check the fuel pr essure. Check the low pressure fuel pump module circuits an d operation. Check for fuel rail and high pressure fu el line leaks. Check for VCV and PCV DTCs and rectify as necessary. P008800 Fuel Rail/System Pressure - Too High Fuel rail pressure (FRP) sensor to ECM wiring (supply/sense): short circuit to each other FRP sensor to ECM sense circuit short circuit to power FRP sensor failure Fuel pressure control valve (FPCV) fault Fuel pump module circuit short circuit to power Fuel pump module failure Check the FRP sensor circuits, check the FPCV. Refer t o the relevant section of the workshop manual. Check the fuel pump module circuits. Refer to the electrical guides.
P062700 Fuel Pump A Control Circuit / Open Fuel pump module relay control circuit short circuit to power Fuel pump module relay failure Check the fuel pump and circuits. Refer to the electrical guides. Activate the relay and listen for an audible click. Refer to the relevant workshop manual section. Repair/renew as necessary. Clear the DTCs and test for normal operation. P062800 Fuel Pump A Control Circuit Low Fuel pump module relay control circuit high resistance Fuel pump module relay control circuit short circuit to ground Fuel pump module relay failure Refer to the electrical guides and check the fuel p ump circuits. Activate the relay and listen for an audib le click. Repair/renew as necessary. Clear the DTCs and test for normal operation. P062900 Fuel Pump A Control Circuit High Fuel pump module relay control circuit high resistance Fuel pump module relay failure Refer to the electrical guides and check the fuel p ump circuits. Activate the relay and listen for an audib le click. Repair/renew as necessary. Clear the DTCs and test for normal operation. P226900 Water in Fuel Condition Water in fuel condition Water in fuel sensor circuit short circuit to ground Water in fuel sensor fault Drain the water from the fuel filter. Clear the DTC and retest. If the DTC resets, check the sensor circuit . Refer to the electrical guides. If no fault is found in t he circuits, install a new sensor. P228800 Injector Control Pressure Too High Fuel pressure control valve (FPCV) minimum limit reached Fuel injector control pressure too high FPCV circuit fault FPCV failure Fuel pump module circuit short circuit to power Fuel pump module failure Fuel injection pump failure Check the fuel pressure, refer to the relevant sect ion of the workshop manual. Check the fuel pump module circuits and the FPCV circuits. Refer to the electric al guides. For FPCV and fuel injection pump, refer to th e relevant workshop manual section. P229000 Injector Control Pressure Too Low Fuel pressure control valve (FPCV) maximum limit reached Fuel injector control pressure too low Fuel line leak Fuel filter/system restriction FPCV circuit fault FPCV failure Fuel pump module circuit short circuit to ground Fuel pump module failure Fuel injection pump failure Check the fuel pressure. Check the fuel lines for leaks/damage. Check for a blocked/restricted fuel f ilter. Check the fuel pump module circuits. Refer to the electrical guides. Check the FPCV circuits. Check th e fuel injection pump. Refer to the relevant workshop manual section. P229200 Injector Control Pressure Erratic Fuel injector control pressure: erratic FPCV circuit fault FPCV failure Fuel pump module circuit high resistance, short circuit to ground, short circuit to power Fuel pump module failure Fuel injection pump failure Check the fuel pressure, refer to the relevant sect ion of the workshop manual. Check the fuel pump module circuits and the FPCV circuits. Refer to the electric al guides. For FPCV and fuel injection pump, refer to th e relevant workshop manual section.