Nissan 350Z Workshop Manual 2003 (13) PDF

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION
A
EC
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
Alphabetical Index .................................................... 8
DTC No. Index ....................................................... 12
PRECAUTIONS ........................................................ 16
Precautions for Supplemental Restraint System
(SRS) ?AIR BAG? and ?SEAT BELT PRE-TEN-
SIONER? ................................................................ 16
Precautions for Battery Service .............................. 16
On Board Diagnostic (OBD) System of Engine and
A/T .......................................................................... 16
Precaution .............................................................. 17
Wiring Diagrams and Trouble Diagnosis ................ 19
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 22
System Diagram ..................................................... 22
Vacuum Hose Drawing ........................................... 23
System Chart ......................................................... 24
Multiport Fuel Injection (MFI) System .................... 25
Electronic Ignition (EI) System ............................... 27
Air Conditioning Cut Control ................................... 28
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 28
CAN communication .............................................. 30
BASIC SERVICE PROCEDURE .............................. 39
Idle Speed and Ignition Timing Check .................... 39
Idle Speed/Ignition Timing/Idle Mixture Ratio
Adjustment ............................................................. 40
Accelerator Pedal Released Position Learning ...... 50
Throttle Valve Closed Position Learning ................ 51
Idle Air Volume Learning ........................................ 51
Fuel Pressure Check .............................................. 53
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 55
Introduction ............................................................ 55
Two Trip Detection Logic ........................................ 55
Emission-related Diagnostic Information ................ 56
NVIS (Nissan Vehicle Immobilizer System ? NATS)
... 71
Malfunction Indicator Lamp (MIL) ...........................71
OBD System Operation Chart ................................75
TROUBLE DIAGNOSIS ............................................ 80
Trouble Diagnosis Introduction ...............................80
DTC Inspection Priority Chart .................................83
Fail-safe Chart ........................................................85
Basic Inspection .....................................................86
Symptom Matrix Chart ............................................91
Engine Control Component Parts Location ............95
Circuit Diagram .....................................................101
ECM Harness Connector Terminal Layout ...........103
ECM Terminals and Reference Value ...................103
CONSULT-II Function ...........................................112
Generic Scan Tool (GST) Function .......................125
CONSULT-II Reference Value in Data Monitor .....127
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................131
TROUBLE DIAGNOSIS - SPECIFICATION VALUE .133
Description ............................................................133
Testing Condition ..................................................133
Inspection Procedure ............................................133
Diagnostic Procedure ...........................................134
TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-
DENT .......................................................................137
Description ............................................................137
Diagnostic Procedure ...........................................137
POWER SUPPLY CIRCUIT FOR ECM ...................138
Wiring Diagram .....................................................138
Diagnostic Procedure ...........................................141
DTC U1000, U1001 CAN COMMUNICATION LINE .146
Description ............................................................146
On Board Diagnosis Logic ....................................146
DTC Confirmation Procedure ...............................146
Wiring Diagram .....................................................147
Diagnostic Procedure ...........................................148
DTC P0011, P0021 IVT CONTROL ........................149
Description ............................................................149
CONSULT-II Reference Value in Data Monitor Mode
.149
On Board Diagnosis Logic ....................................150

Nissan 350Z Workshop Manual 2003 (13) Summary of Content

EC-1ENGINE CONTROL SYSTEMB ENGINECONTENTSCDEFGHIJKLMSECTION AECENGINE CONTROL SYSTEMINDEX FOR DTC ........................................................ 8Alphabetical Index .................................................... 8DTC No. Index ....................................................... 12PRECAUTIONS ........................................................ 16Precautions for Supplemental Restraint System (SRS) AIR BAG and SEAT BELT PRE-TEN-SIONER ................................................................ 16Precautions for Battery Service .............................. 16On Board Diagnostic (OBD) System of Engine and A/T .......................................................................... 16Precaution .............................................................. 17Wiring Diagrams and Trouble Diagnosis ................ 19PREPARATION ......................................................... 20Special Service Tools ............................................. 20Commercial Service Tools ...................................... 21ENGINE CONTROL SYSTEM .................................. 22System Diagram ..................................................... 22Vacuum Hose Drawing ........................................... 23System Chart ......................................................... 24Multiport Fuel Injection (MFI) System .................... 25Electronic Ignition (EI) System ............................... 27Air Conditioning Cut Control ................................... 28Fuel Cut Control (at No Load and High Engine Speed) .................................................................... 28CAN communication .............................................. 30BASIC SERVICE PROCEDURE .............................. 39Idle Speed and Ignition Timing Check .................... 39Idle Speed/Ignition Timing/Idle Mixture Ratio Adjustment ............................................................. 40Accelerator Pedal Released Position Learning ...... 50Throttle Valve Closed Position Learning ................ 51Idle Air Volume Learning ........................................ 51Fuel Pressure Check .............................................. 53ON BOARD DIAGNOSTIC (OBD) SYSTEM ............ 55Introduction ............................................................ 55Two Trip Detection Logic ........................................ 55Emission-related Diagnostic Information ................ 56NVIS (Nissan Vehicle Immobilizer System NATS) ... 71Malfunction Indicator Lamp (MIL) ...........................71OBD System Operation Chart ................................75TROUBLE DIAGNOSIS ............................................ 80Trouble Diagnosis Introduction ...............................80DTC Inspection Priority Chart .................................83Fail-safe Chart ........................................................85Basic Inspection .....................................................86Symptom Matrix Chart ............................................91Engine Control Component Parts Location ............95Circuit Diagram .....................................................101ECM Harness Connector Terminal Layout ...........103ECM Terminals and Reference Value ...................103CONSULT-II Function ...........................................112Generic Scan Tool (GST) Function .......................125CONSULT-II Reference Value in Data Monitor .....127Major Sensor Reference Graph in Data Monitor Mode .....................................................................131TROUBLE DIAGNOSIS - SPECIFICATION VALUE .133Description ............................................................133Testing Condition ..................................................133Inspection Procedure ............................................133Diagnostic Procedure ...........................................134TROUBLE DIAGNOSIS FOR INTERMITTENT INCI-DENT .......................................................................137Description ............................................................137Diagnostic Procedure ...........................................137POWER SUPPLY CIRCUIT FOR ECM ...................138Wiring Diagram .....................................................138Diagnostic Procedure ...........................................141DTC U1000, U1001 CAN COMMUNICATION LINE .146Description ............................................................146On Board Diagnosis Logic ....................................146DTC Confirmation Procedure ...............................146Wiring Diagram .....................................................147Diagnostic Procedure ...........................................148DTC P0011, P0021 IVT CONTROL ........................149Description ............................................................149CONSULT-II Reference Value in Data Monitor Mode .149On Board Diagnosis Logic ....................................150