Jaguar XJ (X350). Manual — part 892

cracks/damage

Ignition coil failure(s)

Harness

Difficult to

start

Difficult to start cold

Check coolant anti-freeze

content

Battery

CKP sensor

EGR valve stuck open

Fuel pump

Coolant temperature

sensor

Purge valve

For battery information,

Battery For CKP sensor tests,

GO to Pinpoint Test

G258127p17.

For EGR system information,

Engine Emission Control - VIN

Range: G00442->G45703 For

fuel system,

Fuel Charging and Controls -

VIN Range: G00442->G45703

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

For evaporative emissions

components,

Evaporative Emissions - VIN

Range: G00442->G45703

Difficult to start hot

Injector leak

Fuel temperature sensor

IAT sensor

MAF sensor

Purge valve

Fuel pump

Ignition system

Coolant temperature

sensor

For fuel system,

Fuel Charging and Controls -

VIN Range: G00442->G45703

For fuel temperature sensor

tests, GO to Pinpoint Test

G258127p34.

For IAT sensor tests, GO to

Pinpoint Test G258127p2.

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

For evaporative emissions

components,

Evaporative Emissions - VIN

Range: G00442->G45703 For

ECT sensor tests, GO to

Pinpoint Test G258127p3.

Difficult to start after

hot soak (vehicle

standing after engine

has reached operating

temperature)

Injector leak

Fuel temperature sensor

IAT sensor

For fuel system,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

For fuel temperature sensor

MAF sensor

Purge valve

Fuel pump

Ignition system

Coolant temperature

sensor

tests, GO to Pinpoint Test

G258127p34.

For IAT sensor tests, GO to

Pinpoint Test G258127p2.

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

For evaporative emissions

components,

Evaporative Emissions - VIN

Range: G00442->G45703 For

ECT sensor tests, GO to

Pinpoint Test G258127p3.

Engine cranks too

fast/slow

Compressions high/low

Battery

Starting system

Check compressions,

Engine For battery

information,

Battery For starting system,

Engine

stalls

Engine stalls soon after

start

Breather system

disconnected/restricte
d

ECM relay

Harness

MAF sensor

Coolant temperature

sensor

Ignition system

Air filter restricted

Fuel lines

Fuel pressure sensor

Air leakage

For breather system,

Engine Emission Control - VIN

Range: G00442->G45703 For

ECM relay tests, GO to Pinpoint

Test G258127p32.

For MAF sensor tests, GO to

Pinpoint Test G258127p1.

For ECT sensor tests, GO to

Pinpoint Test G258127p3.

For ignition system,

Engine Ignition - VIN Range:

G00442->G45703 For air filter

information,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 For fuel system, fuel

pressure sensor tests,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

For intake system information,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703

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Engine stalls on

overrun

ECM relay

Throttle sensors

For ECM relay tests, GO to

Pinpoint Test G258127p32.

For throttle sensor tests, GO to

Pinpoint Test G258127p4.

For fuel system,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

Engine stalls at steady

speed

ECM relay

CKP sensor

Throttle sensors

Harness

For ECM relay tests, GO to

Pinpoint Test G258127p32.

For fuel system,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

For CKP sensor tests, GO to

Pinpoint Test G258127p17.

For throttle sensor tests, GO to

Pinpoint Test G258127p4.

Engine stalls with

speed control enabled

ECM relay

Harness

For ECM relay tests, GO to

Pinpoint Test G258127p32.

Engine stalls when

maneuvering

ECM relay

Throttle sensors

Additional engine loads

(PAS, air conditioning,
etc)

Transmission malfunction

CAN network malfunction

For ECM relay tests, GO to

Pinpoint Test G258127p32.

For throttle position sensor

tests, GO to Pinpoint Test

G258127p4.

For accessory drive

information,

For transmission information,

For CAN network tests,

Communications Network

Poor

driveability

Engine hesitates/poor

acceleration

Fuel pump

Injector leak

Fuel pressure

Fuel lines

Air leakage

For fuel pump, fuel pressure

sensor, fuel line and injector

tests,

Fuel Charging and Controls -

VIN Range: G00442->G45703

Fuel Charging and Controls -

VIN Range: G45704->G99999

For intake system,

Intake Air Distribution and

Throttle sensors

Throttle motor

Ignition system

Exhaust gas recirculation

HO2 sensors

Transmission malfunction

Restricted pedal travel

(carpet, etc)

APP sensor

Filtering - VIN Range: G00442-

>G45703 For throttle position

sensor tests, GO to Pinpoint

Test G258127p4.

For throttle motor tests, GO to

Pinpoint Test G258127p24.

For ignition system,

Engine Ignition - VIN Range:

G00442->G45703 For exhaust

gas recirculation,

Engine Emission Control - VIN

Range: G00442->G45703

Check for DTCs relating to HO2

sensors. Refer to the DTC index

for pinpoint tests for DTC set.

For transmission information,

Check accelerator pedal travel.

For APP sensor tests, GO to

Pinpoint Test G258127p22.

and GO to Pinpoint Test

G258127p23.

Engine backfires

Fuel pump

Fuel lines

Air leakage

MAF sensor

HO2 sensors

Ignition system

Sticking VCT hub

APP sensor

For fuel pump and lines tests,

Fuel Tank and Lines - 4.2L NA

V8 - AJV8/4.2L SC V8 -

AJV8/3.0L NA V6 - AJ27/3.5L

NA V8 - AJV8, VIN Range:

G00442->G45703 For intake

system,

Intake Air Distribution and

Filtering - VIN Range: G00442-

>G45703 For MAF sensor tests,

GO to Pinpoint Test

G258127p1.

Check for DTCs relating to HO2

sensors. Refer to the DTC index

for pinpoint tests for DTC set.

For ignition system,

Engine Ignition - VIN Range:

G00442->G45703 For VCT

information,

Engine For APP sensor tests,

GO to Pinpoint Test

G258127p22.

and GO to Pinpoint Test

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