Jaguar XJ (X350). Manual — part 627

G45704->G99999 For EGR system

information,

Engine Emission Control - VIN

Range: G45704->G99999

Difficult to start after hot

soak (vehicle standing after

engine has reached

operating temperature)

•

Injector leak

•

EFT sensor

•

IAT sensor

•

MAF sensor

•

Purge valve

•

Fuel pump

•

Ignition system

•

EGR valve stuck open

For fuel injector information,

Fuel Charging and Controls - VIN

Range: G45704->G99999 For EFT,

IAT and MAF sensor tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 For purge

valve tests,

Evaporative Emissions - VIN Range:

G45704->G99999 Check the fuel

pressure,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999 For

ignition system tests,

Engine Ignition - VIN Range:

G45704->G99999 For EGR system

information,

Engine Emission Control - VIN

Range: G45704->G99999

Engine stalls soon after

start

•

Breather system
disconnected/restricted

•

ECM relay

•

Harness

•

MAF sensor

•

Fuel rail pressure (FRP)
sensor

•

Ignition system

•

Air filter restricted

•

Air leakage

•

Fuel lines

For breather system information,

Engine Emission Control - VIN

Range: G45704->G99999 For ECM

relay, MAFand FRP sensor tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 For

ignition system tests,

Engine Ignition - VIN Range:

G45704->G99999 For air filter and

intake system information,

Intake Air Distribution and Filtering -

VIN Range: G45704->G99999 For

fuel line information,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999

Engine hesitates/poor

acceleration

•

Fuel pump

•

Fuel pressure

•

Fuel lines

•

Injector leak

•

Air leakage

Check the fuel pressure, check the

fuel lines,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999 For

injector information,

•

Throttle position (TP)
sensors

•

Accelerator pedal position
(APP) sensor

•

Throttle motor

•

Restricted pedal travel
(carpet, etc)

•

Ignition system

•

EGR valve stuck open

•

HO2 sensors

•

Transmission malfunction

Fuel Injectors (18.10.02) For intake

system information,

Intake Air Distribution and Filtering -

VIN Range: G45704->G99999 For

TP, APP sensor and throttle motor

tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 Check the

accelerator pedal travel. For ignition

system tests,

Engine Ignition - VIN Range:

G45704->G99999 For EGR system

information,

Engine Emission Control - VIN

Range: G45704->G99999 Check for

DTCs indicating a faulty HO2 sensor.

Refer to the DTC index. For

transmission information,

Engine backfires

•

Fuel pump

•

Fuel lines

•

Air leakage

•

MAF sensor

•

APP sensor

•

HO2 sensors

•

Ignition system

•

Sticking variable camshaft
timing (VCT) hub

Check the fuel pressure, check the

fuel lines,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999 For

intake system,

Intake Air Distribution and Filtering -

VIN Range: G45704->G99999 For

MAF and APP sensor tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 Check for

DTCs indicating a faulty HO2 sensor.

Refer to the DTC index. For ignition

system tests,

Engine Ignition - VIN Range:

G45704->G99999 Check DTCs for

VCT range/performance fault. For

VCT information,

Engine

Engine surges

•

Fuel pump

•

Fuel lines

•

MAF sensor

•

Harness

•

TP sensors

•

Throttle motor

Check the fuel pressure, check the

fuel lines,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999 For

MAF, TP sensor, and throttle motor

www.

•

Ignition system

tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 For

ignition system tests,

Engine Ignition - VIN Range:

G45704->G99999

Engine detonates/knocks

•

Knock sensor (KS) circuit
malfunction

•

FRP sensor

•

MAF sensor

•

HO2 sensors

•

Fuel pump

•

Fuel lines

•

Air leakage

•

Sticking VCT hub

•

BARO sensor malfunction
(internal ECM fault)

For KS, FRP, MAF and HO2 sensor

tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 Check the

fuel pressure, check the fuel lines,

Fuel Tank and Lines - 3.0L/3.5L/4.2L,

VIN Range: G45704->G99999 For

intake system information,

Intake Air Distribution and Filtering -

VIN Range: G45704->G99999 Check

DTCs for VCT range/performance

fault. For VCT information,

Engine Refer to the warranty policy

and procedures manual if an ECM is

suspect.

No throttle response

•

APP sensor malfunction

•

TP sensors

•

Throttle motor

For APP, TP sensor and throttle

motor tests,

Electronic Engine Controls - VIN

Range: G45704->G99999

Poor throttle response

•

APP sensor malfunction

•

TP sensors

•

ECT sensor

•

MAF sensor

•

Transmission malfunction

•

Traction control event

•

Air leakage

•

Breather system
disconnected/restricted

For APP, TP, ECT and MAF sensor

tests,

Electronic Engine Controls - VIN

Range: G45704->G99999 For

transmission information,

For intake system,

Intake Air Distribution and Filtering -

VIN Range: G45704->G99999 For

breather system information,

Engine Emission Control - VIN

Range: G45704->G99999

Generic scan tools may not read the codes listed, or 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).

NOTE:

For a full list of DTCs,

Electronic Engine Controls - VIN Range: G45704->G99999

DTC

Description

Possible Causes

Action

P008700

Fuel rail/system

pressure - too low

•

FRP sensor disconnected

•

FRP sensor to ECM sensing
circuit: open circuit or short
circuit to ground

•

FRP sensor supply circuit:
high resistance

•

FRP sensor failure

•

Fuel pump failure

•

Fuel line leak

•

Restricted fuel line

For FRP sensor circuit

tests,

Electronic Engine Controls

- VIN Range: G45704-

>G99999 For fuel pump

circuit and fuel line tests,

Fuel Tank and Lines -

3.0L/3.5L/4.2L, VIN Range:

G45704->G99999

P008800

Fuel rail/system

pressure - too high

•

FRP sensor to ECM wiring
(supply/sense): short circuit
to each other

•

FRP sensor to ECM sense
circuit: short circuit to high
voltage

•

FRP sensor ground circuit:
high resistance

•

FRP sensor failure

•

Restricted fuel line

•

Fuel pump short circuit to
battery

For FRP sensor tests,

Electronic Engine Controls

- VIN Range: G45704-

>G99999 For fuel pump

circuit and fuel line tests,

Fuel Tank and Lines -

3.0L/3.5L/4.2L, VIN Range:

G45704->G99999

P017100

System too lean (right

hand bank)

•

Air intake leak between MAF
sensor and cylinder head

•

Fuel filter/system restriction

•

Low fuel pressure

•

Fuel injector restriction

•

MAF sensor fault (low intake
air flow)

•

Exhaust leak (before catalyst)

•

Evaporative emission system
fault

For intake system

information,

Intake Air Distribution and

Filtering - VIN Range:

G45704->G99999 Check

the fuel pressure, check

the fuel lines,

Fuel Tank and Lines -

3.0L/3.5L/4.2L, VIN Range:

G45704->G99999 For fuel

Diagnostic trouble code (DTC) index

NOTE:

www.