FUEL SYSTEM (DFI) 3-1

Fuel System (DFI)

Table of Contents

Fuel System Diagram

3-3

Camshaft Position Sensor

 

Exploded View

3-4

Removal/Installation

3-43

Specifications

3-10

Camshaft Position Sensor

 

Special Tools and Sealant

3-12

Inspection

3-43

DFI Parts Location

3-13

Vehicle-down Sensor (Service

 

DFI System

3-16

Code/Character-31/dOS)

3-44

DFI Servicing Precautions

3-19

Vehicle-down Sensor Removal ....

3-44

Self-Diagnosis

3-22

Vehicle-down Sensor Installation .

3-44

Self-diagnosis Outline

3-22

Vehicle-down Sensor Inspection..

3-45

Service Code (Character) Table

3-23

Fuel Injectors (Service

 

Troubleshooting the DFI System

3-25

Code/Character-41, 42, 43,

 

Throttle Sensor (Service

 

44/InJ1, InJ2, InJ3, InJ4)

3-47

Code/Character-11/tPS)

3-27

Fuel Injector Removal

3-47

Throttle Sensor Removal/Adjust-

 

Fuel Injector Installation

3-47

ment

3-27

Audible Inspection

3-48

Input Voltage Inspection

3-28

Injector Signal Test

3-48

Output Voltage Inspection

3-30

Injector Resistance Inspection

3-49

Resistance Inspection

3-31

Injector Unit Test

3-49

Inlet Air Pressure Sensor (Service

 

Injector Voltage Inspection

3-50

Code/Character-12/bOSt)

3-33

Injector Fuel Line Inspection

3-51

Inlet Air Pressure Sensor

 

Ignition Coils (Service

 

Removal

3-33

Code/Character-51, 52/COL1,

 

Inlet Air Pressure Sensor

 

COL2)

3-53

Installation

3-33

Ignition Coil Removal/Installation.

3-53

Input Voltage Inspection

3-33

Input Voltage Inspection

3-53

Output Voltage Inspection

3-34

Engine Overheating (Service

 

Inlet Air Temperature Sensor (Service

 

Code/Character-71/HEAt)

3-55

Code/Character-13/AIrt)

3-36

Low Engine Oil Pressure (Service

 

Inlet Air Temperature

 

Code/Character-72/OILP)

3-56

Removal/Installation

3-36

Oil Temperature Sensor (Service

 

Output Voltage Inspection

3-36

Code/Character-73/OILC or

 

Sensor Resistance Inspection

3-37

73/OILt)

3-57

Water Temperature Sensor (Service

 

Oil Temperature Sensor

 

Code/Character-14/AqUt)

3-39

Removal/Installation

3-57

Water Temperature Sensor

 

Output Voltage Inspection

3-57

Removal/Installation

3-39

Sensor Resistance Inspection

3-58

Output Voltage Inspection

3-39

Engine Oil Overheating (Service

 

Sensor Resistance Inspection

3-41

Code/Character-76/OILH)

3-59

Crankshaft Sensor (Service

 

ECU

3-60

Code/Character-21/CrAg)

3-42

ECU Removal

3-60

Crankshaft Sensor

 

ECU Installation

3-60

Removal/Installation

3-42

ECU Power Supply Inspection

3-60

Crankshaft Sensor Inspection

3-42

DFI Power Source

3-63

Camshaft Position Sensor (Service

 

Main Fuse Inspection

3-63

Code/Character-23/CAAg)

3-43

Relay Assembly Removal

3-63

 

 

Relay Assembly Inspection

3-63

3

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Kawasaki STX-15F service manual Fuel System DFI