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Denso CRS - User Manual

Denso CRS
134 pages
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Diesel Injection Pump
COMMON RAIL SYSTEM (CRS)
OPERATION
September, 2007
00400534E
SERVICE MANUAL

Table of Contents

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Summary

Common Rail System Operation Overview

Diesel Engine Environmental Impact and Regulations

Discusses global warming, exhaust emissions, and regulatory demands on diesel vehicles.

Fuel Injection System Demands

Highlights requirements for diesel engines like higher pressure, precision, and optimized rates.

Common Rail System Components and Types

Layout of Main Components

Illustrates the arrangement of key components like supply pump, rail, and injectors.

Supply Pump Types: HP0, HP2, HP3, HP4

Details the construction and characteristics of different supply pump models.

Rail Description

Rail Functions and Composition

Explains the rail's role in distributing pressurized fuel to injectors and its components.

Injector Description and Operation

General Injector Description

Describes the injector's function in delivering fuel to the combustion chamber.

Injector Construction and Types (X1, X2, G2)

Details the construction and features of different injector types.

Control System Components

Engine Control System Diagram

Provides a reference diagram for the engine control system components.

Engine ECU (Electronic Control Unit)

Explains the function and role of the Engine ECU in system control.

EDU (Electronic Driving Unit)

Details the EDU's function in enabling high-speed injector actuation.

Various Sensors

Describes the function of various sensors used in the engine control system.

Fuel Injection Control Strategies

Fuel Injection Control

Explains how fuel injection is controlled for optimal engine operation.

E-EGR System (Electric-Exhaust Gas Recirculation)

Describes the E-EGR system for reducing NOx emissions via exhaust gas recirculation.

End of Volume Materials

Particulate Matter (PM) Information

Provides information on Particulate Matter (PM) and its health effects.

Common Rail System History and Manufacturers

Details the development history and major manufacturers of common rail systems.

Injection Pressure and Rate Optimization

Discusses higher injection pressure and optimized injection rates for performance.

Diesel Engine Malfunctions and Diagnostic Methods

Combustion State and Malfunction Cause

Explains diesel knock, white smoke, and black smoke as indicators of combustion issues.

Diagnostic Work Flow

Outlines the systematic procedure for diagnosing vehicle malfunctions.

DTC Reading and System Diagnosis

DST-2 Diagnostic Tool Usage

Instructions for using the DST-2 to read and erase DTCs for Toyota vehicles.

Troubleshooting by System Categories

Guides troubleshooting for intake and fuel system diagnostics.

Troubleshooting Common Engine Symptoms

Malfunction Indicator Lamp (MIL) Diagnosis

Steps for diagnosing issues when the check engine warning light is illuminated.

Engine Starting and Idling Problems

Troubleshooting for hard starting, stalling at idle, and slow return to idle.

Diagnosis Codes (DTC) List

DTC Structure and Assignment

Explains the format and assignment of diagnostic trouble codes.

Common DTCs for CRS Systems

Lists DTCs related to common rail systems, compatible with DST-2.

Denso CRS Specifications

General IconGeneral
BrandDenso
ModelCRS
CategoryWater Pump
LanguageEnglish

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