Jaguar X-Type Sedan and Estate (Wagon). Service manual — part 343

Published: 11-May-2011

Electronic Engine Controls - 2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27 -
Variable Camshaft Timing (VCT) Oil Control Solenoid

Removal and Installation

Removal

Right-Hand Bank

1. Remove the right-hand valve cover. For additional information, refer to

For additional information, refer to:

Valve Cover RH

(303-01A Engine -

2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27, In-vehicle
Repair).
.

Left-Hand Bank

2. Remove the left-hand valve cover. For additional information, refer to

For additional information, refer to:

Valve Cover RH

(303-01A Engine -

2.0L NA V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27, In-vehicle
Repair).
.

Right-Hand and Left-Hand Banks

3. Remove the variable camshaft timing oil control solenoid.

Installation

1. To install, reverse the removal procedure.

Tighten to 10 Nm.

2. NOTE: For NAS vehicles only.

If required, carry out a long drive cycle.
For additional information, refer to:

Powertrain Control Module (PCM)

Long Drive Cycle Self-Test

(303-14A Electronic Engine Controls - 2.0L NA

V6 - AJV6/2.5L NA V6 - AJV6/3.0L NA V6 - AJ27, General Procedures).

Published: 11-May-2011

Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW/150PS) -
Puma -

Torque Specifications

Description

Nm

lb-ft

lb-in

Camshaft position sensor retaining bolt

9

–

80

Crankshaft position sensor retaining bolt

7

–

62

Cylinder head temperature sensor

10

–

89

Power steering pump belt cover retaining nut

10

–

89

Engine oil pressure sensor

15

11

–

Fuel temperature sensor

15

11

–

Knock sensor

20

15

–

Fuel injection supply manifold high-pressure pipe retaining nut

10

–

89

Manifold absolute pressure and temperature sensor retaining clips

4

–

35

Radiator support bar retaining bolts

25

18

–

Charge air cooler upper hose retaining clip

4

–

35

Charge air cooler lower hose retaining clip

4

–

35

Catalytic converter temperature sensor

35

26

–

Diesel particulate filter temperature sensor

35

26

–

Manifold absolute pressure sensor retaining bolt

4

–

35

Published: 11-May-2011

Electronic Engine Controls - 2.0L Duratorq-TDCi/2.2L Duratorq-TDCi (110kW/150PS) -
Puma - Electronic Engine Controls

Description and Operation

Item

Part Number

Description

1

—

Camshaft position (CMP) sensor

2

—

Engine control module (ECM)

3

—

Cylinder head temperature (CHT) sensor

4

—

Crankshaft position (CKP) sensor

5

—

Mass airflow (MAF) sensor

6

—

Fuel temperature sensor

7

—

Engine oil pressure (EOP) sensor

8

—

Knock (KS) sensor

9

—

Manifold absolute pressure and temperature (MAP-T) sensor

Camshaft Position (CMP) Sensor

The camshaft position (CMP) sensor is located on the front of the cylinder head and it is a hall effect type sensor. The CMP sensor takes its
signal from the inlet camshaft lobe. The signal is used to identify cylinder number three and thus allowing the individual cylinders to be

identified. Should the CMP sensor fail the engine will not start.

Engine Control Module (ECM)

The engine control module (ECM) is located in the same position as the petrol version. The engine management system (EMS) uses signals
from the various sensors as inputs to the ECM which contains a series of maps for the engine parameters. Based on the inputs from the
sensors regarding current engine conditions and loads, the ECM determines the optimum settings to use for the EMS, and so gives the best
performance and/or economy for a given set of conditions. The ECM also manages the speed control system, again based on information
from the vehicle sensors to provide the optimum settings.

Cylinder Head Temperature (CHT) Sensor

The cylinder head temperature (CHT) sensor is located at the rear of the engine behind the rear end accessory drive camshaft pulley. The
CHT sensor measures the temperature of the cylinder head and then provides the ECM and the instrument cluster with the engine
temperature.

Crankshaft Position (CKP) Sensor

The crankshaft position (CKP) sensor is located at the rear of the engine mounted to the cylinder block. It is used to detect the engine
position and speed of the crankshaft. It is a permanent inductive type sensor. Should the CKP sensor fail, the engine will not start.

Mass Airflow (MAF) Sensor

The mass airflow (MAF) sensor is mounted on the clean air side of the air filter and upstream of the turbocharger air compressor. The
function of the MAF sensor is to measure the amount of air flow drawn into the engine. This airflow is used by the ECM to control the
exhaust gas recirculation (EGR) operation.

Engine Oil Pressure (EOP) Sensor

The engine oil pressure (EOP) sensor is located on the left-hand side of the engine in the oil filter housing. The EOP is connected to the
instrument cluster and is not directly part of the electronic engine control system.

Knock Sensor (KS)

The knock sensor (KS) is located on the left-hand side of the engine mounted on the cylinder head between cylinders two and three. The KS
allows the ECM to analyze the quality of combustion by measuring the increase in vibration. The ECM will use this signal to calculate the
quantity of fuel to be injected during phased injection. The correction to the fueling for the phased injection minimizes the combustion
noise. Should the KS fail the result would be no phased injection and thus an increase in diesel knock when idling and accelerating.

Manifold Absolute Pressure and Temperature (MAP-T) Sensor

The manifold absolute pressure and temperature (MAP-T) sensor combines the manifold pressure sensor and inlet air temperature sensor in
one component. It is located in the inlet boost pressure pipe, right side front after the charge air cooler. Its function and operation is to
measure the positive charge pressure developed by the turbocharger and its temperature, and to inform the ECM.

Fuel Temperature Sensor

The fuel temperature sensor can be identified by a blue connector located in the low pressure fuel supply circuit on the back of the high
pressure pump. The fuel temperature sensor is a negative thermal coefficient type sensor which measures the fuel temperature in the low
pressure circuit. Should the fuel temperature sensor fail the cold running characteristic will be affected.