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Make/Model Information:

  • Brand:   Denso
  • Models included:
    • Denso Common Rail for Isuzu 4HK1 Engine
    • Denso Common Rail for Isuzu 6HK1 Engine

File Information:

  • Type:   Factory Service Manual (FSM)
  • Language:   English (EN)
  • Number of pages:   187
  • File size:  ∼ 9.30 MB
  • File Format:   PDF only
  • SME Watermarks:   None
  • Password lock:   No
  • Edit/copy/modify:   Yes
  • SKU:   ENDE-0006

NOTE:  This list was created by program script and may not accurately represent the text from the source pages.   For full preview please click on 'Download sample':

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SERVICE BULLETIN
FUEL INJECTION PUMP
NEW PRODUCTS
DENSO AUTHORIZED ECD SERVICE DEALERS ONLY
SUBJECT : HP3/HP4 SUPPLY PUMP PRODUCT LIST
1. Outline
This is a combined list of the common rail system HP3/HP4 supply pumps.
This list details pump part numbers by manufacturer, product information by part number, and
exterior diagrams by part number.
2. List of Pump Part Numbers by Manufacturer
2.1. TOYOTA
2.2. ISUZU
Engine Model DENSO
Part Number
Customer
Part Number
1KD 294000-001# 22100-30021-F
1CD HU294000-006#
(HU294000-010#)
22100-0G010-C
(22100-0G010-B)
1KD/2KD SM294000-011# 22100-0L010-F
1CD 294000-017# 22100-27020-A
1KD/2KD SM294000-0350 22100-0L020
1KD 294000-038# 22100-30050
(22100-458F2 )
Engine Model DENSO
Part Number
Customer
Part Number
Customer
OEM Part Number
OPEL Part Number
4EE2 HU294000-007#
(294000-015#)
8-97313862-2
(8-97313862) 97313862
- (High-Speed Edition) SM294000-023# 8-97311373-3 -
4HK1 294000-026# 8-97328886-0 -
6HK1 294050-002# 8-97602049-1 -
ECD04-05E
Novenber, 2004
SERVICE DEPARTMENT
0410-IT-015 Printed in Japan
00400509E
2.3. HINO
2.4. MAZDA
2.5. MITSUBISHI (MFTBC)
2.6. JOHN DEERE
2.7. NISSAN MOTOR
2.8. Hyundai
Engine
Part Number
Customer
Part Number
Customer
OEM Part Number
TOYOTA Part Number NISSAN DIESEL
Part Number
N04C 294000-019# 22730-1261B 22100-78190 -
J05D 294000-025# 22730-1321A - 16730-Z5002
J08E 294050-001# 22730-1311A - 16730-Z5001
Engine Model DENSO
Part Number
Customer
Part Number
RF-DI 294000-004# RF5C 13 800A
Engine Model DENSO
Part Number
Customer
Part Number
6M60T 294050-005# ME302145
Engine Model DENSO
Part Number
Customer
Part Number
4045T,6068T 294000-005# RE507959
Engine Model DENSO
Part Number
Customer
Part Number
YD1-K2
294000-012# 16700 AW403
HU294000-016# 16700 AW420
Engine Model DENSO
Part Number
Customer
Part Number
W (D4DA) 294000-029# 33100-45700
00400056E
Common Rail System for ISUZU
SERVICE MANUAL
OPERATION
4HK1 / 6HK1 Type Engine
February, 2004
Diesel Injection Pump
FORWARD
To meet the high pressurization requirements for the engine to deliver cleaner exhaust gas emissions, lower fuel
consumption and reduced noise, advanced electronic control technology is being adopted in the fuel injection system.
This manual covers the electronic control model Common Rail system with HP3/HP4 pump for the ISUZU 4HK1/6HK1
type engines which are used to ELF and GM 560 series respectively. Complex theories, special functions and
components made by manufacturers other than DENSO are omitted from this manual.
This manual will help the reader develop an understanding of the basic construction, operation and system configuration
of the DENSO manufactured components and brief diagnostic information.
TABLE OF CONTENTS
1. Product Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-1. Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1-2. System Components Parts Numbers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
2. Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2-1. Outline of System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
2-2. Outline of System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2-3. Fuel System and Control System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
3. Construction and Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3-1. Description of Main Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3-2. Description of Control System Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3-3. Various Types of Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3-4. Engine ECU . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
1. Product Application
1-1. Application
1-2. System Components Parts Numbers
Vehicle Name Engine Model Vehicle model Exhaust Volume Reference
ELF 4HK1 N series 5.2L Direct-Injection
C560 Series 6HK1 GM 560 7.8L Direct-Injection
Parts Name DENSO Parts Number
Car Manufacturer Parts
Number
Reference
Supply Pump 294000-0260 8973288860 4HK1
294050-0021 9876020491 6HK1
Injector 095000-5351 8976011561 6HK1
095000-5361 8976028031
095000-5471 8973297031 4HK1
Rail 095440-0351 8973060632 4HK1
095440-0470 8973230190 6HK1
Engine ECU 275800-2801 8151794773 6HK1
275800-2812 8973750190 4HK1
275800-2822 8973750200
2-2. Outline of System
A. Composition
The common rail system consists primarily of a supply pump, rail, injectors, and engine ECU.
a. 4HK1
b. 6HK1
Q000737E
Fuel temperature sensor
Vehicle speed
Accelerator opening
Intake air pressure
Intake air temperature
Coolant temperature
Crankshaft position
Cylinder recognition sensor
Engine ECU
Intake airflow rate
Rail pressure
Supply pump
Fuel temperature
sensor SCV (suction
control valve)
Pressure
limiter
Fuel tank
Injector
Q000523E
Fuel temperature sensor
Vehicle speed
Accelerator opening
Intake air pressure
Intake air temperature
Coolant temperature
Crankshaft position
Cylinder recognition sensor
Engine ECU
Intake airflow rate
Rail pressure
Supply pump
Fuel temperature
sensor SCV (suction
control valve)
Pressure
limiter
Fuel tank
Injector


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