G9T.pdf

Technical Note 3444A

JE0K - JE0S

Basic manual: Workshop Repair Manual 315 and Technical Note 3426A

SPECIAL FEATURES OF THE ESPACE

FITTED WITH THE G9T ENGINE

77 11 297 982

AUGUST 2000

EDITION ANGLAISE

"The repair methods given by the manufacturer in this document are based on the

technical specifications current when it was prepared.

All copyrights reserved by Renault.

Copying or translating, in part or in full, of this document or use of the service part

reference numbering system is forbidden without the prior written authority of Renault.

The methods may be modified as a result of changes introduced by the manufacturer

in the production of the various component units and accessories from which his

vehicles are constructed."

Contents

Page

13 DIESEL EQUIPMENT

Technical specifications

13-1

Special features

13-3

Cleanliness

13-6

Location of components

13-8

Injection warning light

13-11

Immobiliser function

13-12

Injection programming/air

conditioning

13-13

Idle speed correction

13-15

Pre-postheating control

13-16

Heater plugs

13-17

Thermoplunger

13-18

Low pressure pump

(supercharging pump)

13-20

Fuel filter

13-21

High pressure pump

13-22

Injectors

13-27

Rail protector

13-31

Injector rail

13-37

Checking diesel pressure

and flow

13-39

Pressure sensor

13-40

Pressure regulator

13-41

DIESEL EQUIPMENT

Specifications

113

Engine

Vehicle Gearbox

Bore

(mm)

Stroke

(mm)

Cubic

capacity

(cm 3 )

Catalytic

converter

Depollution

standard

Compression

ratio

Type Index

JE0 K

JE0 S

PK1

G9T

718

2 188

18/1

C93

Euro 2000

ENGINE SPEED (rpm)

SMOKE DENSITY

IDLING SPEED Max. - no load Max. - under load

Homologation

value

Max. - Max

800

4500

4250

100

0.44 m -1

2.5 m -1

DESCRIPTION

BRAND/TYPE

SPECIAL NOTES

High pressure pump

BOSCH CP1

Pressure from 250 to 1350 bar

Supercharging pump (low

pressure)

BOSCH EKP3

Pressure from 2.5 to 4 bar

Diesel pressure sensor

BOSCH

Fitted to the injection rail

Resistance: tracks 1,2 and 1,3 at 4.3 M Ω

tracks 2,3 at 1050 Ω

Injectors

BOSCH

Solenoid injector

Resistance: < 2 Ω

Maximum pressure 1525 bar

Pressure regulator

Integrated with the high pressure pump

Resistance: ≈

5 Ω at 20 ˚ C

Injection computer

BOSCH EDC15C 4.2 3 connector computer ( 32/48/48 tracks )

Pre-postheating unit

NAGARES BED/7-12

With pre-postheating function controlled by the

injection computer

Heater plugs

BERU

CHAMPION

Resistance: 0.6 Ω connector removed

Accelerator potentiometer

HELLA

Double track potentiometer

track 1

track 2

track 3

track 4

track 5

track 6

potentiometer earth n˚2

potentiometer earth n˚1

potentiometer signal n˚1

potentiometer supply n˚1

potentiometer supply n˚2

potentiometer signal n˚2

Air intake temperature sensor

SIEMENS

Integrated in the flow meter

Resistance between 100

and 40

13-1

DIESEL EQUIPMENT

Specifications

DIESEL EQUIPMENT

Specifications

DESCRIPTION

BRAND/TYPE

SPECIAL NOTES

Diesel temperature sensor

ELTH

Resistance ≈

2050 Ω at 25 ˚ C ± 123 Ω

Engine speed sensor

MGI

Resistance: 200 to 270 Ω at 23˚

Integrated in the computer

Atmospheric pressure sensor

BOSCH

track 1

track 2

track 3

controlled earth

pressure signal

sensor supply

Camshaft sensor

ELECTRIFIL

Hall effect sensor

Turbocharging pressure sensor

DELCO

track A

track B

track C

controlled earth

pressure signal

sensor supply

Turbocharger operating

solenoid

BITRON/

SIEMENS

Resistance: 16.5

1.7

at 25 ˚ C

Air flow meter

SIEMENS

Flow meter with integrated air temperature sensor

track 1 :

track 2 :

track 3 :

track 4 :

track 5 :

track 6 :

air temperature

earth

5 V reference

+ 12 V after injection relay

air flow signal

earth

EGR solenoid valve

PIERBURG

Solenoid valve resistance: 8 ± 0.5 Ω at 20 ˚ C (tracks 1 and 5)

Potentiometer resistance: 4 K Ω ± 1.6 at 20 ˚ C (tracks 2 and 4)

Turbocharger

GARRETT

Calibration:

120 mbar for rod travel between 1 and 4 mm

400 mbar for a stroke between 10 and 12 mm

Thermoplungers

EUROPALU

Resistance: 0.45 ± 0.05 Ω at 20 ˚ C - 4 x 300 Watts

NTC C type sensor

Coolant temperature sensor

ELTH

controlled earth

coolant temperature

Track 2/3 resistance: 2252 Ω±

112 Ω

Damper flap solenoid valve

EATON

Resistance: 43 to 49 Ω at 25 ˚ C

Turbulator flap solenoid valve

(SWIRL)

EATON

Resistance: 43 to 49 Ω at 25 ˚ C

13-2

track 2

track 3

DIESEL EQUIPMENT

Special notes

The common rail direct high pressure injection system is intended to deliver a specific quantity of diesel to the

engine at a specific time.

DESCRIPTION

The system consists of:

– a low pressure pump (1) (located between the air intake unit and the fuel filter),

– a fuel filter (2),

– a high pressure pump (3),

– a high pressure regulator (4) mounted on the pump,

– an injection rail (5) fitted with a diesel pressure sensor,

– a repriming valve (6) (open when operating normally),

– a fuel cooler (7),

– four solenoid injectors,

– various sensors,

– an injection computer.

Removal of the interior of the high pressure pump and the injectors is prohibited.

13-3

Special notes

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