Nissan 350Z Workshop Maunual 2005 (13) PDF

EC-1
ENGINE CONTROL SYSTEM
B ENGINE
CONTENTS
C
D
E
F
G
H
I
J
K
L
M
SECTION EC
A
EC
Revision: 2005 August 2005 350Z
ENGINE CONTROL SYSTEM
INDEX FOR DTC ........................................................ 8
DTC No. Index ......................................................... 8
Alphabetical 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
PREPARATION ......................................................... 20
Special Service Tools ............................................. 20
Commercial Service Tools ...................................... 21
ENGINE CONTROL SYSTEM .................................. 22
System Diagram (Except for 35th Anniversary) ..... 22
System Diagram (For 35th Anniversary) ................ 23
Multiport Fuel Injection (MFI) System .................... 24
Electronic Ignition (EI) System ............................... 26
Fuel Cut Control (at No Load and High Engine
Speed) .................................................................... 27
AIR CONDITIONING CUT CONTROL ..................... 28
Input/Output Signal Chart ....................................... 28
AUTOMATIC SPEED CONTROL DEVICE (ASCD) ... 29
System Description ................................................ 29
Component Description .......................................... 30
CAN COMMUNICATION .......................................... 31
System Description ................................................ 31
EVAPORATIVE EMISSION SYSTEM ....................... 32
Description ............................................................. 32
Component Inspection ........................................... 35
Removal and Installation ........................................ 36
How to Detect Fuel Vapor Leakage ....................... 36
ON BOARD REFUELING VAPOR RECOVERY
(ORVR) ...................................................................... 39
System Description ................................................ 39
Diagnostic Procedure ............................................. 40
Component Inspection ........................................... 42
POSITIVE CRANKCASE VENTILATION ................. 44
Description ..............................................................44
Component Inspection ............................................44
NVIS (NISSAN VEHICLE IMMOBILIZER SYSTEM-
NATS) ........................................................................46
Description ..............................................................46
ON BOARD DIAGNOSTIC (OBD) SYSTEM ............47
Introduction ............................................................. 47
Two Trip Detection Logic ........................................ 47
Emission-related Diagnostic Information ................48
Malfunction Indicator Lamp (MIL) ...........................63
OBD System Operation Chart ................................66
BASIC SERVICE PROCEDURE ...............................72
Basic Inspection .....................................................72
Idle Speed and Ignition Timing Check .................... 77
Idle Mixture Ratio Adjustment ................................. 78
VIN Registration .....................................................90
Exhaust Valve Timing Control Learning (For 35th
Anniversary) ...........................................................90
Accelerator Pedal Released Position Learning ...... 91
Throttle Valve Closed Position Learning ................. 91
Idle Air Volume Learning ........................................92
Fuel Pressure Check ..............................................94
TROUBLE DIAGNOSIS ............................................ 96
Trouble Diagnosis Introduction ...............................96
DTC Inspection Priority Chart ...............................102
Fail-safe Chart ......................................................104
Symptom Matrix Chart ..........................................105
Engine Control Component Parts Location (Except
for 35th Anniversary) ............................................109
Engine Control Component Parts Location (For
35th Anniversary) .................................................115
Vacuum Hose Drawing .........................................121
Circuit Diagram .....................................................122
ECM Harness Connector Terminal Layout ...........124
ECM Terminals and Reference Value ...................124
CONSULT-II Function (ENGINE) ..........................135
Generic Scan Tool (GST) Function .......................148
CONSULT-II Reference Value in Data Monitor .....150
Major Sensor Reference Graph in Data Monitor
Mode .....................................................................154