Isuzu KB P190. Manual — part 810

Fuel System – V6

Page 6C – 38

5 Specifications

F u e l T a n k C a p a c i t y :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 litres

F u e l T a n k M a t e r i a l :

. . . . . . . . . . . . . . . . . . ..'W'-type high-density multi-layer polyethylene

F u e l F i l l e r L o c a t i o n :

. . . . . . . . . . . . . . . . . . . . . . . . . Attached to the left side of tray

F u e l P u m p T y p e :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Single turbine

P r e s s u r e R e g u l a t o r L o c a t i o n :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Engine bay

F u e l P u m p L o c a t i o n :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . In fuel tank

F u e l P u m p R e g u l a t e d P r e s s u r e :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . approx. 410 kPa at idle

M i n i m u m F u e l P u m p F l o w C a p a c i t y ( a t R e g u l a t e d P r e s s u r e ) :

. . . . . . . . . . . . . . . . . . . . . . . . . . . 2.95 L/min @ 13.5 volts

F u e l P u m p C u r r e n t D r a w ( S t e a d y S t a t e a t R e g u l a t e d P r e s s u r e ) :

. . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.0 Amps maximum

Fuel System – V6

Page 6C – 39

6

Torque Wrench Specifications

Fuel Tank Mounting Strap Bolts . . . . . . . . . . . . . . ... 68.0 Nm

Evaporative Emission Control Canister Mounting Nut . . . . ... 2.0 – 5.0 Nm

Fuel Line Securing Nut . . . . . . . . . . . . . . . . 8.0 – 12.0 Nm

Stone Guard Securing Bolt. . . . . . . . . . . . . . . 5.0 – 7.0 Nm

Fuel System – V6

Page 6C – 40

7 Special

Tools

Tool

Number Illustration

Description Tool

Classification

AU469
(J39765)

Modular Fuel Pump and Sender

Assembly Remover / Installer.

(Sedan, Wagon and Utility)

Previously released.

Mandatory

J22610

Keystone Clamp Pliers

Used to remove and fasten ear-type
clamps.

Available

J36850

TransJel Lubricant

Used to lubricate fuel tank siphon
hose during fuel tank drain/siphon
procedures.

Desirable

J44284–2

Fuel Flapper Door Holder

Holds open the fuel filler neck flapper
door to allow the fuel tank siphon
hose to be fed down into the fuel filler
neck.

Mandatory

J45004–1

Fuel Tank Siphon Hose

Flexible fuel siphoning hose with
grounding wire and threaded vacuum
pump fitting.

Mandatory

Engine Management – V6 – General Information

Page 6C1-1–1

6C1-1 Engine Management – V6

General Information

A T T E N T I O N

Before performing any service operation or other procedure described in this Section, refer to 1.3 Warning
Caution and Notes for correct workshop practices with regard to safety and / or property damage.

1

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...3

1.1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Emission Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 3

ADR 79/01 Emissions Standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3

1.3

Warning Caution and Notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4

Definition of WARNING, CAUTION and NOTE Statements. . . . . . . . . . . . . . . . . . . . . 4

WARNING defined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

CAUTION defined . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4

NOTE defined. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

2

Component Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...5

2.1

Cylinder Numbering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 5

2.2

Engine Compartment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.3

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.4

Interior. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3

System Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...9

3.1

Fuel Delivery System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Fuel System Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 9

Fuel Injection System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10

Short Term Fuel Trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 10

Long Term Fuel Trim. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.2

Air / Fuel Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Starting Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 11

Run Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

Open Loop Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

Closed Loop Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 11

Acceleration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 11

Deceleration Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 11

Fuel Shut-off Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11

Battery Voltage Correction Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 12

Limp Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Engine Protection Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12

Clear Flood Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

3.3

Ignition Control System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 12

3.4

Starter Motor Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 12

3.5

Throttle Actuator Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 12

Throttle Body Relearn Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 14

TAC System Default Actions / Reduce Power Modes. . . . . . . . . . . . . . . . . . . . . ... 14

Forced Engine Shutdown. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.6

Cruise Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

3.7

Brake Torque Management . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.8

Emission Control Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15

Evaporative Emission Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15

Engine Ventilation System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 16